Best Supercharger For 5 0 Mustang: Compare Nine Kits
A strong choice for a 5.0 Mustang pairs confirmed fitment with a supercharger kit and calibration suited to the car’s model generation. The Roush Performance Phase 2 kit leads this roundup for its stated 2018–2021 GT fit, included tune, Eaton TVS R2650, and claimed 750 horsepower. The other options range from generation-specific Roush upgrades to Ford Racing’s kit for newer GT and Dark Horse models, plus VMP systems described for 2018-and-newer Coyote engines.
These products are not interchangeable: several are upgrade kits for existing Roush setups, and one listing describes a small-block Chevy application rather than a Mustang. Check the exact year, engine, existing hardware, and calibration requirements before choosing; the headline power figure alone cannot establish compatibility.
The Roush Performance Phase 2 Kit is the strongest overall match because its listing specifies a 5.0L Mustang GT application, an Eaton TVS R2650, a low-temperature full-face intercooler, and an included engine calibration. It claims 750 horsepower and 670 ft.-lbs. of torque.
Those listed details make it a more complete match than upgrade-only products, but confirm your Mustang’s exact year and configuration before ordering: the stated fitment is for 2018–2021 GT models.
Our Top Picks
Best OverallSpecifies a 5.0L Mustang GT application, Eaton TVS R2650, included calibration, and claimed output of 750 horsepower and 670 ft.-lbs. of torque.
View on Amazon
2015–2017 UpgradeThe listing explicitly identifies a 2015–2017 Mustang ROUSH Phase 2 upgrade and states a 727-horsepower output.
View on Amazon
Newest Model FitListed for 2024-and-newer Mustang GT and Dark Horse 5.0L models, with a twin-screw design and dual-pass intercooler.
View on Amazon- 2018+ Coyote Fit VMP Odin Supercharger
- 625 HP Upgrade Roush Phase 2 Upgrade Kit
Compare the Supercharger Kits and Upgrade Options
| # | Product | Weight | Buy |
|---|---|---|---|
| 1 | 1. Roush Phase 2 KitBest Overall | 196.2 lb | View on Amazon |
| 2 | 2. Roush Phase 2 Upgrade2015–2017 Upgrade | — | View on Amazon |
| 3 | 3. Ford Racing Supercharger KitNewest Model Fit | 188 lb | View on Amazon |
| 4 | 4. VMP Odin Supercharger2018+ Coyote Fit | 114 lb | View on Amazon |
| 5 | 5. VMP Loki Supercharger2018+ Coyote Loki candidate | 114 lb | View on Amazon |
| 6 | 6. Roush Phase 2 Upgrade Kit625 HP Upgrade | 17.1 lb | View on Amazon |
| 7 | 7. Roush Phase 1 Upgrade2011–2014 Mustang Phase 1 | 12 lb | View on Amazon |
| 8 | 8. Roush Phase 2 Upgrade KitRoush Phase 1-to-2 upgrader | 6 lb | View on Amazon |
| 9 | 9. Edelbrock E-Force KitCarbureted small-block Chevy use | 73.8 lb | View on Amazon |
Detailed Reviews: Best Supercharger For 5 0 Mustang
Why it ranks #1: Specifies a 5.0L Mustang GT application, Eaton TVS R2650, included calibration, and claimed output of 750 horsepower and 670 ft.-lbs. of torque.
The Eaton TVS R2650 and low-temperature full-face intercooler headline this Roush Phase 2 kit, which lists 750 horsepower and 670 lb-ft of torque for 2018–2021 Mustang GTs with the 5.0L V8. Included engine calibration makes the tune part of the kit rather than a separately listed purchase.
This is a substantial, application-specific package: the listed 196.2-pound weight and kit format are worth considering when planning installation and handling. The low-temperature full-face intercooler is paired with the TVS R2650, while the included engine calibration supplies a stated tuning component alongside the hardware. Its listed 750-horsepower and 670-lb-ft figures describe the upgrade’s output target. Fit is limited to the specified 2018–2021 Mustang GT 5.0L V8; it is not presented as a universal Mustang kit.
- Eaton TVS R2650 supercharger
- Low-temperature full-face intercooler
- Engine calibration included
- Lists 750 hp and 670 lb-ft
- At 196.2 pounds, the kit requires planning for heavy-component handling.
Skip it if you own a 2015–2017 Mustang GT; the Roush 2015–2017 Phase 2 727HP Upgrade Kit is listed for that generation.
Choose this Roush kit if your 2018–2021 Mustang GT has the 5.0L V8 and you want the listed 750-hp package with calibration included. Its specified fit does not cover other model years or engines.
Full product details
| Brand | Roush |
|---|---|
| Item Weight | 196.2 pounds |
| Item model number | 832-422184 |
| Manufacturer | Roush Performance |
| Part Number | 422184 |
| Model | JEGS |
| Dimensions | 105 x 105 x 66 inches |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: This product can expose you to chemicals including styrene which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov |
Listed on Amazon as: STAGE II 750 2018-2020 MUSTANG
View on AmazonWhy it ranks #2: The listing explicitly identifies a 2015–2017 Mustang ROUSH Phase 2 upgrade and states a 727-horsepower output.
This Roush Phase 2 upgrade kit is titled for 2015–2017 Mustang models and lists a 727-horsepower target, giving owners of that generation a direct application and output reference. Its upgrade-kit designation frames it for a conversion rather than as a general supercharger claim.
The stated 2015–2017 Mustang application narrows the fit context, while the 727-hp title gives buyers an output target to consider for that generation. Roush identifies the product as a Phase 2 supercharger upgrade kit, so its role is an upgrade and should be evaluated accordingly. The supplied specifications do not describe included hardware, calibration or installation steps. That makes the generation and upgrade designation the reliable selection details, rather than grounds to assume a complete package scope.
- Phase 2 supercharger upgrade kit
- Titled for 2015–2017 Mustang
- Lists 727 hp
- Roush-branded product
- Its stated application is limited to 2015–2017 Mustang models.
Skip it if you own a 2018–2021 Mustang GT; the Roush Phase 2 750 kit specifies that generation and includes calibration.
This suits a 2015–2017 Mustang owner considering the listed Phase 2, 727-hp upgrade. Keep the stated generation in view, and check that the upgrade-kit scope matches your project before planning installation.
Full product details
| Brand | Roush |
|---|---|
| Color | Black |
| Part Number | 421994 |
| Operation Mode | Electric |
Listed on Amazon as: 2015-2017 Mustang ROUSH Phase 2 Supercharger 727HP Upgrade Kit 421994
View on AmazonWhy it ranks #3: Listed for 2024-and-newer Mustang GT and Dark Horse 5.0L models, with a twin-screw design and dual-pass intercooler.
Ford Racing lists this supercharger kit for 2024+ Mustang GT and Dark Horse 5.0L models, and its Whipple exclusive inverted twin-screw design is the central hardware detail. A patented dual-pass intercooler and Tomahawk calibration delivery tool are also specified.
The inverted twin-screw design and patented dual-pass intercooler identify the kit’s core supercharger and cooling architecture, while the Tomahawk tool is listed for calibration delivery. Compatibility with Ford Performance’s exclusive calibration is stated, and premium fuel is required, so fuel choice belongs in ownership planning. The 188-pound item weight is relevant when arranging handling and installation. The listing describes the included components as the main component only, a scope boundary buyers should factor into project planning.
- Inverted twin-screw design
- Patented dual-pass intercooler
- Tomahawk calibration delivery tool
- Specified for 2024+ GT/Dark Horse 5.0L
- Premium fuel is required.
Skip it if you have a 2018–2021 GT; the Roush Phase 2 750 kit lists that model range and includes engine calibration.
This is for 2024+ Mustang GT or Dark Horse 5.0L owners who want the stated Whipple architecture and calibration tool. Account for premium-fuel requirements and the listing’s main-component-only scope.
Full product details
| Brand | ford racing |
|---|---|
| Included Components | Main component only |
| Item Weight | 188 pounds |
| Manufacturer | Ford Racing |
| Part Number | M-6066-M8800 |
| Manufacturer Warranty Description | Please contact us if you experience any issues within 30 days of receipt. |
| Model Number | M-6066-M8800 |
Listed on Amazon as: Ford Racing 2024+ Mustang GT/Dark Horse 5.0L Supercharger Kit
View on AmazonWhy it ranks #4: Described as a supercharger for 2018-and-newer Coyote engines, giving relevant stated application fit although output and included parts are unspecified.
Odin is VMP Performance’s named supercharger for the 2018+ Coyote, making its stated engine-generation range the clearest fit marker for Mustang shoppers. VMP reports Magnuson Superchargers’ research-and-development support and says the unit underwent real-world testing as part of its development.
The 2018+ Coyote designation gives buyers a specific engine-generation boundary to compare with their Mustang, while the Odin name distinguishes this VMP offering from its Loki listing. VMP says Magnuson Superchargers supported its research and development and reports real-world testing, providing development context without establishing a particular power result. At 114 pounds, the listed item weight is a practical handling consideration. The supplied information does not specify horsepower, torque, calibration, or installation contents, so those details remain outside the supported claims.
- Named Odin supercharger
- Specified for the 2018+ Coyote
- Magnuson Superchargers supported development
- Listed item weight is 114 pounds
- The supplied details give no horsepower or torque figure.
Skip it if you want a listed power target and included tune; the Roush Phase 2 750 kit states both for 2018–2021 Mustang GTs.
Odin merits consideration for a 2018+ Coyote project where its stated application and development background suit your shortlist. Confirm that the product’s documented scope meets your needs; the supplied facts do not state output or kit contents.
Full product details
| Brand | VMP Performance |
|---|---|
| Item Weight | 114 pounds |
Listed on Amazon as: VMP Performance VMP-SK1820MODIN
View on AmazonWhy it ranks #5: Its description identifies a 2018-and-newer Coyote application, but provides no output figure or specific included components to distinguish it.
Loki is VMP Performance’s named supercharger for the 2018+ Coyote, giving Mustang owners in that engine-generation range a clearly identified application to consider. VMP says Magnuson Superchargers supported its research and development, and that the unit underwent real-world testing before presentation.
The strongest supported buying point is the stated 2018+ Coyote application: that gives the product a defined engine-generation context rather than a general, all-Mustang claim. VMP also credits Magnuson Superchargers with support for research and development and describes real-world testing, which provides context about its development process. The listing gives a 114-pound item weight, so buyers should account for handling that component. No horsepower figure or installation details are supplied here, so the stated facts do not establish those outcomes.
- Named Loki supercharger
- Specified for the 2018+ Coyote
- Magnuson Superchargers supported development
- Listed item weight is 114 pounds
- The supplied details give no horsepower or torque figure.
Skip it if you need a stated output target or included calibration; the Roush Phase 2 750 kit lists both horsepower and engine calibration.
Consider Loki if your project uses a 2018+ Coyote and VMP’s Magnuson-supported development is relevant to your selection. The listed facts establish application and weight, but not output figures or installation contents.
Full product details
| Brand | VMP Performance |
|---|---|
| Item Weight | 114 pounds |
Listed on Amazon as: VMP Performance VMP-SK1820MLOKI
View on Amazon
#6 · 625 HP Upgrade
6. Roush Phase 2 Upgrade Kit
- Weight: 17.1 lb
Best for: Existing Roush kit upgrader.
Why it ranks #6: Raises compatible previous Roush 525-, 540-, or 575-horsepower setups to a stated 625 horsepower and includes a pulley, belt, intake, and calibration.
The 85mm supercharger pulley anchors this Roush Phase 2 upgrade, which raises listed output to 625 horsepower and 525 lb-ft for owners of earlier Roush 525-, 540- or 575-hp kits. Its included cold-air induction components also change the intake setup as part of the conversion.
The 85mm pulley and 6-rib serpentine FEAD belt are the named drive-system pieces, while the cold-air induction system brings a 110mm MAF tube, larger clean-air tube, open air box and reusable performance filter. Those components define the upgrade’s hardware scope rather than requiring buyers to assemble an intake from unspecified parts. The unique ROUSH PCM calibration is included, but the Mustang PCM must be shipped back to ROUSH, so calibration involves an off-car step.
- Lists 625 hp and 525 lb-ft
- Includes an 85mm supercharger pulley
- Cold-air induction system includes reusable filter
- Unique ROUSH PCM calibration included
- The Mustang PCM must be shipped back to ROUSH for calibration.
Skip it if you need a complete kit for a 2018–2021 GT; the Roush Phase 2 750 kit specifies that application and includes calibration.
This suits owners upgrading a compatible earlier Roush 525-, 540- or 575-hp setup who accept sending the PCM to ROUSH. Check the stated upgrade-kit scope against your existing system before planning the conversion.
Full product details
| Brand | Roush |
|---|---|
| Item Weight | 17.1 pounds |
| Manufacturer | Roush |
| Model Number | 421389 |
Listed on Amazon as: Supercharger Upgrade Kit, Phase 2, 525/540HP to 625HP
View on AmazonWhy it ranks #7: Specifies a Mustang 5.0L application and a 575-horsepower Phase 1 upgrade, but fitment is limited to the stated 2011–2014 range.
The Roush Phase 1 upgrade lists a 575-horsepower target for 2011–2014 Mustang 5.0L models, giving owners of that generation a specific application and output reference. Its identification as an upgrade kit makes the existing vehicle and model-year boundary central to selection.
The listed 2011–2014 Mustang 5.0L fit and 575-hp designation provide the key points for deciding whether this Phase 1 upgrade matches a project. The product is described as a supercharger upgrade kit, so buyers should evaluate it in that upgrade context rather than assume it is a universal standalone package. The supplied details do not specify included calibration, intercooling or other components; installation planning should therefore stay within the stated application and kit identity.
- Phase 1 supercharger upgrade kit
- Specified for 2011–2014 Mustang 5.0L
- Lists 575 hp
- Roush-branded performance part
- Its stated 2011–2014 application excludes later Mustang generations.
Skip it if you own a 2015–2017 Mustang; the Roush Phase 2 727HP Upgrade Kit is listed for those Mustang years.
Choose this for a 2011–2014 Mustang 5.0L project where the listed Phase 1 and 575-hp specification fit your plan. Its stated generation is the key boundary; it is not listed for newer Mustangs.
Full product details
| Brand | Roush |
|---|---|
| Item Weight | 12 pounds |
| Item model number | 421387 |
| Part Number | 421387 |
| Package Dimensions | 20 x 12.75 x 6.75 inches |
Listed on Amazon as: Roush 421387 Supercharger Upgrade Kit, Phase 1, 575Hp, 1 Pack
View on AmazonWhy it ranks #8: The listing identifies a Roush 1-to-Phase 2 upgrade kit, but supplies no Mustang fitment, engine details, or power claim.
The title identifies this Roush part as a Phase 1-to-Phase 2 supercharger upgrade kit, making its conversion role the most useful selection clue. Its listed six-pound item weight also gives buyers a concrete handling detail when planning parts storage or workshop logistics.
This listing’s stated Phase 1-to-Phase 2 purpose points toward an existing Roush system rather than a general-purpose supercharger purchase. The six-pound item weight and compact listed dimensions of 12.25 by 8.25 by 7 inches can help with handling and storage planning for the supplied item. However, the provided product facts do not name Mustang years, engine fitment or upgrade contents. Buyers should treat the conversion description as its supported scope and avoid inferring a specific power result.
- Identified as a Phase 1-to-Phase 2 upgrade kit
- Roush brand
- Listed item weight is six pounds
- Compact listed dimensions: 12.25 × 8.25 × 7 inches
- The supplied facts do not specify a Mustang model-year application.
Skip it if you need a stated Mustang year and output target; the Roush 2015–2017 Phase 2 727HP kit lists both.
This may suit a Roush Phase 1 owner seeking a Phase 2 upgrade component, with its light listed weight aiding handling. The supplied facts do not define Mustang fitment or output, so those are important boundaries.
Full product details
| Brand | Roush |
|---|---|
| Item Weight | 6 pounds |
| Item model number | 421994 |
| Manufacturer | ROUSH |
| Part Number | 421994 |
| Model | JEGS |
| Dimensions | 12.25 x 8.25 x 7 inches |
Listed on Amazon as: Roush Upgrade Kit 1-to-Phase 2 Supercharger
View on AmazonWhy it ranks #9: Its listed carbureted Eaton H122 system and small-block Chevy power claim do not establish fitment for a 5.0 Mustang.
The Edelbrock E-Force 122 uses an Eaton H122 rotor assembly and is identified as a carbureted system, giving small-block Chevy builders a clearly stated engine context. Its listed capability is 500-plus horsepower on a small-block Chevy, not a Mustang 5.0 fitment claim.
The carbureted system type and 6-rib, 3.75-inch pulley describe key configuration details, while the Eaton H122 rotor assembly is specified for the E-Force 122 system. Edelbrock states capability of more than 500 horsepower on a small-block Chevy engine, which gives Chevy builders an application-specific output reference. The conventional cylinder-head compatibility is another stated selection point. Because the supplied application is small-block Chevy, Mustang 5.0 owners should not treat this as a Mustang-specific kit.
- Eaton H122 rotor assembly
- Carbureted system type listed
- Conventional cylinder-head compatibility
- States 500+ hp capability on small-block Chevy
- Its stated 500+ hp application is small-block Chevy, not Mustang 5.0.
Skip it if you are shopping for a Mustang 5.0 kit; the Ford Racing 2024+ Mustang GT/Dark Horse kit names that application.
This fits a carbureted small-block Chevy build seeking the stated E-Force 122 configuration and 500-plus-horsepower capability. It is not identified for a Mustang 5.0, so Mustang shoppers should choose an application-specific option instead.
Full product details
| Brand | Edelbrock |
|---|---|
| Item Weight | 73.8 pounds |
| Item model number | 1551 |
| Manufacturer | Edelbrock |
| Part Number | 1551 |
| Model | 1551 |
| Special Features | Capable of producing 500+ horsepower on a small-block Chevy engine, Utilizes Eaton H122 rotor assembly for maximum efficiency |
Listed on Amazon as: Edelbrock 1551 E-Force Street Legal Supercharger Kit
View on AmazonAvoid the upgrade-kit compatibility trap
An upgrade kit may not be a complete supercharger system, so confirm what hardware is already on the car before treating it as a standalone purchase. The Roush Phase 2 Upgrade Kit raises specified previous Roush setups to 625 horsepower and includes a pulley, belt, intake components, and a unique calibration; its description calls it an upgrade for existing 525-, 540-, and 575-horsepower kits or vehicles. The Roush Phase 1 Upgrade is also explicitly an upgrade, with stated Mustang 5.0L fitment limited to 2011–2014.
The Roush Phase 2 Upgrade listing for 2015–2017 likewise identifies an upgrade kit. These details make the existing supercharger and its exact configuration essential checks.
Do not assume that the word “kit” means all three products include a complete blower, intercooler, or every part needed for installation; the supplied listings do not establish that.
Treat power claims as application-specific
A horsepower figure is meaningful only when it is tied to the right engine, kit, and calibration. The Roush Performance Phase 2 Kit lists 750 horsepower and 670 ft.-lbs. of torque for its specified 5.0L Mustang GT application, with calibration included.
The Roush Phase 2 Upgrade Kit describes a 625-horsepower result for prior Roush setups, while the Roush Phase 1 Upgrade lists 575 horsepower for its stated application. Those are different products and contexts, not a direct comparison on an identical car.
The Ford Racing Supercharger Kit identifies a 2024-and-newer 5.0L application and says premium fuel is required, but the supplied details do not give a power figure. VMP’s Odin and Loki descriptions state 2018-and-newer Coyote fitment without a listed output. Compare only claims that match your Mustang’s generation and starting configuration, and seek confirmed application-specific details before relying on an advertised number.
How to Choose a 5.0 Mustang Supercharger
Mustang year and engine fit
Start by matching the kit’s stated application to your Mustang’s exact year and engine. The Roush Performance Phase 2 Kit specifies a 5.0L GT for 2018–2021; the Ford Racing Supercharger Kit lists 2024-and-newer GT and Dark Horse 5.0L models. VMP Odin and Loki are described for 2018-and-newer Coyote engines, while the Roush Phase 1 Upgrade states Mustang 5.0L fitment for 2011–2014 and the Roush Phase 2 Upgrade listing identifies 2015–2017.
Buyers with a newer GT or Dark Horse should focus on the Ford listing; those with a 2018–2021 GT have a direct match in the Roush complete kit. Confirm exact fitment rather than assuming a broad Coyote description guarantees every related part will fit.
Complete kit or upgrade parts
Look for whether the listing describes a full supercharger system or an upgrade for hardware already installed. The Roush Performance Phase 2 Kit names a supercharger, intercooler, and included calibration. By contrast, the Roush Phase 2 Upgrade Kit lists an 85mm pulley, 6-rib belt, cold-air induction components, and calibration, and specifies upgrades for previous Roush kits.
The Roush Phase 1 Upgrade also identifies itself as an upgrade kit. Buyers starting with a stock vehicle should prioritize listings that clearly describe a complete system and verify what the seller includes.
Owners of a compatible existing Roush system may find an upgrade more applicable, but should match its stated starting kit and confirm any calibration or installation requirements not spelled out in the listing.
Stated output and calibration
Compare power claims alongside the calibration and fuel details, not as standalone numbers. The Roush Performance Phase 2 Kit claims 750 horsepower and 670 ft.-lbs. of torque and says engine calibration is included.
The Roush Phase 2 Upgrade Kit lists 625 horsepower and 525 lb-ft of torque, while the Roush Phase 1 Upgrade lists 575 horsepower. Ford Racing’s listing says premium fuel is required and references an exclusive calibration, but gives no power number in the supplied details.
VMP’s Odin and Loki descriptions do not state output figures. Buyers prioritizing a published number and included tune may favour the Roush Performance Phase 2 Kit when its fitment matches; those considering other systems should obtain confirmed output and calibration information for their exact setup.
Which 5.0 Mustang Supercharger Should You Choose?
Choose the Roush Phase 2 Kit if you have a compatible 2018–2021 GT and want the clearest combination of stated fitment, included calibration, intercooler, and claimed 750-horsepower output. For a 2015–2017 Mustang already equipped with compatible Roush hardware, consider the Roush Phase 2 Upgrade, whose listing states 727 horsepower; verify precisely what the upgrade includes. Owners of a 2024-and-newer GT or Dark Horse can investigate the Ford Racing Supercharger Kit, which lists those applications and requires premium fuel.
For a 2011–2014 Mustang with a suitable existing setup, the Roush Phase 1 Upgrade is the generation-specific option. VMP Odin and VMP Loki are described for 2018-and-newer Coyote engines, but their supplied details lack output figures.
Avoid the Edelbrock E-Force Kit for this use case: its listing describes a carbureted small-block Chevy application.
Frequently Asked Questions
What supporting fuel-system or engine upgrades are needed for a supercharged 5.0 Mustang?
Requirements depend on the specific kit and Mustang configuration; the supplied listings do not establish a universal set of supporting fuel-system or engine upgrades. Check the manufacturer’s requirements for your exact application and ask your installer to assess the existing setup before ordering. The Roush Phase 2 listing specifically includes an engine calibration.
Does installing a supercharger affect factory warranty coverage or emissions compliance?
The supplied product details do not specify warranty effects or emissions compliance. Before buying, check the terms that apply to your vehicle and confirm the kit’s legal status for your location with the manufacturer or a qualified installer. A “street legal” title alone does not establish compliance for every vehicle or jurisdiction.
Can a shop install and calibrate these kits without modifying other engine components?
That cannot be confirmed for every kit from the supplied details. The Roush Phase 2 listing says an engine calibration is included, but it does not establish that installation needs no other changes. Ask a shop to review the kit instructions, your vehicle configuration, and any required supporting components before scheduling work.
How should I confirm that a kit fits my Mustang?
Match the listing to your Mustang’s exact year, model, and configuration, then verify fitment with the manufacturer before ordering. The stated Roush Phase 2 application is 2018–2021 GT, while the Ford Racing listing identifies 2024-and-newer GT and Dark Horse applications. Do not rely on a broad “5.0 Mustang” description alone.
When is a Phase 2 upgrade kit appropriate?
A Phase 2 upgrade is intended for an existing compatible setup, not necessarily a stock Mustang. The Roush listing identifies a 2015–2017 Phase 2 upgrade and states 727 horsepower; another Phase 2 upgrade is described for 2018–2021 GT models. Confirm existing hardware compatibility and exactly what the upgrade includes before choosing one.
Final Words
For a compatible 2018–2021 Mustang GT, the Roush Phase 2 Kit is the clearest overall choice in this roundup: its listing specifies fitment, an intercooler, calibration, and claimed output. Owners of other generations should prioritize the application-specific options and verify existing hardware for upgrade kits. Check exact fitment, supporting requirements, warranty implications, and local emissions rules with the manufacturer or installer before ordering.





