Best Exhaust For Infiniti Q50: Compare Axle-Back and Cat-Back Options

#1 · Best Overall

1. Extreme Online Store Axle-Back

• Material: Stainless Steel
• Material Type: Stainless Steel
• Compatible with Vehicle Type: Fits ALL 2014-2024 Infiniti Q50 Models
• Weight: 12 lb

Best for: Q50 owners wanting polished dual tips.

Why it ranks #1: Lists fitment for all 2014–2024 Q50 models and includes paired stainless tips, gaskets, and bolts for an axle-back installation.

A stainless-steel axle-back package with 4.5-inch double-wall dual tips gives 2014–2024 Infiniti Q50 owners a polished rear-end change while keeping the replacement focused on the muffler section. The listing specifies a left-and-right pair, so the exhaust change covers both sides rather than a single outlet.

The stated 2014–2024 Q50 coverage makes this a broad model-year option, while the stainless-steel construction and polished silver finish suit buyers seeking a coordinated exterior update. Its axle-back layout keeps the listed scope to the rear muffler section, and the included left-and-right gaskets and nut-and-bolt pairs provide the named connection hardware. The seller also says each unit is test-fitted before shipment, a fitment-focused detail for owners planning a replacement installation.

Skip it if you want a full cat-back system rather than an axle-back replacement; aFe Power 49-36132NM-B is listed as cat-back.

Choose this for a 2014–2024 Q50 owner seeking a stainless axle-back replacement with prominent polished dual tips and listed installation hardware. Its scope is the rear axle-back section, not a complete exhaust system.

Listed on Amazon as: Replacement For 2014-2024 Infiniti Q50 STAINLESS STEEL POLISHED SILVER Muffler Axle Back 4.5" Double Wall Dual Tips Exhaust EXT-MD003

#2 · Best Hardware Kit

2. Benson Tuning Axle-Back

• Material: Stainless Steel
• Material Type: Stainless Steel
• Compatible with Vehicle Type: Car

Best for: Q50 buyers preferring four-inch tips.

Why it ranks #2: Covers Q50 2.0, 3.0, 3.5, and 3.7-liter models across listed years, with 2.25-inch piping and included bolts, gaskets, and mufflers.

Four-inch double-walled tips distinguish this polished stainless axle-back, giving Q50 owners a defined rear-exit appearance alongside 2.25-inch piping. The listing covers 2014–2024 Q50 models with 2.0, 3.0, 3.5, and 3.7-liter engines, offering a wide stated engine range for the model years specified.

The 2.25-inch inlet connection and 4-inch outlet tips give buyers clear connection and exit dimensions to consider when planning an axle-back replacement. Stainless-steel construction with a polished finish keeps the listed material and appearance consistent through the muffler section. Bolts, gaskets, and mufflers are included, which supplies named installation components rather than requiring the buyer to source those listed items separately. Fitment is stated for Q50 2.0/3.0/3.5/3.7L models from 2014 through 2024.

Skip it if you need a cat-back system or a listed fitment beyond 2014–2024 Q50 engines; aFe Power 49-36132NM-B is a cat-back option.

This suits Q50 owners within the listed 2014–2024 engine range who want a polished stainless axle-back with four-inch tips. Check that its stated connection dimensions and axle-back scope match your planned setup.

Listed on Amazon as: Dual Walled 4" Tips Polished Stainless Axle Back Muffler Exhaust for Infiniti Q50 2014-2024

#3 · Muffler-Delete Pick

3. Truck Exhaust Kits Axle-Back

• Weight: 15 lb

Best for: Q50 enthusiasts seeking a muffler delete.

Why it ranks #3: Offers a direct-fit 2.5-inch axle-back for 2014–2024 Q50 models; the muffler-delete design suits buyers seeking a less muffled exhaust note.

A 2.5-inch direct-fit axle-back muffler delete gives 2014–2024 Infiniti Q50 owners a bolt-on route to the product’s stated goal of hearing more of the car’s sound. Mandrel-bent pipes and the high-flow description define its listed construction and intended exhaust approach.

This product is described as a direct-fit 2.5-inch axle-back muffler delete for 2014–2024 Q50 models, which makes its model-year range and rear-section scope useful starting points for buyers. The bolt-on description supports a replacement workflow without presenting it as a complete exhaust system. Mandrel-bent pipes and the high-flow description are named construction and flow attributes, while the muffler-delete format signals the kind of change being made. The listing also states that it is made in the USA.

Skip it if you want an axle-back that retains listed mufflers; BENSON TUNING AB-IQ5014-C includes mufflers, bolts, and gaskets.

This is for Q50 owners in the stated 2014–2024 range seeking a 2.5-inch bolt-on muffler delete. Its defining boundary is the delete format, rather than a muffler-equipped axle-back or full cat-back.

Listed on Amazon as: Truck Exhuast Kits – Direct Fit Infiniti Q50 14-24 2.5" High Flow Axle Back

#4 · Mandrel-Bent Pick

4. TUNERBITS Axle-Back

• Material: Stainless Steel
• Material Type: Stainless Steel
• Compatible with Vehicle Type: Car

Best for: Earlier Q50 owners seeking polished axle-back piping.

Why it ranks #4: Provides a direct-bolt-on polished stainless axle-back with mandrel-bent piping, but its stated fitment ends at 2018.

Mandrel-bent piping and a polished stainless-steel finish define this axle-back for 2014–2018 Infiniti Q50 models. CNC-machined flanges with TIG- and MIG-welded construction provide named details at the joints, while the direct bolt-on description gives buyers a clear installation approach for this model-year range.

Its stated 2014–2018 fitment makes the model-year boundary important for owners choosing a rear exhaust replacement. Mandrel-bent piping is paired with polished stainless steel, giving the axle-back its specified material and formed-pipe construction. CNC-machined flanges and TIG- and MIG-welded construction identify how its connection areas are made, while direct bolt-on installation indicates the intended replacement workflow. The product does not include installation instructions, so buyers who need written guidance will need to refer to a shop or factory manual.

Skip it if you own a 2019–2024 Q50 outside its stated range; Extreme Online Store EXT-MD003 is listed for 2014–2024 models.

This fits earlier Q50 owners seeking polished stainless axle-back piping with machined flanges and a direct-bolt-on approach. Its stated coverage ends at 2018, and installation guidance must come from a manual.

Listed on Amazon as: Polished Stainless Steel Axle Back Muffler Exhaust for Infiniti Q50 2014-2018

#5 · Broad-Year Fitment

5. Extreme Online Store 4-Inch Axle-Back

• Material: Stainless Steel
• Material Type: Stainless Steel
• Compatible with Vehicle Type: Fits ALL 2014-Present Infiniti Q50 Models
• Weight: 8 lb

Best for: Q50 owners seeking standard four-inch dual tips.

Why it ranks #5: Lists all 2014-present Q50 models and stainless construction with 4-inch double-wall dual tips; the listing provides less hardware detail.

Four-inch double-wall dual tips define this polished stainless axle-back for Infiniti Q50 models listed as 2014–present. The paired outlets and silver finish target owners seeking a straightforward rear-section change, while the stated broad fitment makes it relevant across the model range described by the seller.

The listing identifies a stainless-steel muffler axle-back with four-inch double-wall dual tips, linking its material and outlet style to a focused rear exhaust replacement. Its stated fitment is all 2014–present Q50 models, although the supplied description does not name engine variants. As an axle-back, it covers the rear muffler section rather than identifying a complete cat-back system. The polished silver finish and dual-tip configuration provide the key appearance details; buyers seeking a different tip finish or system section should compare those requirements.

Skip it if you need a named engine application rather than broad Q50 fitment; BENSON TUNING AB-IQ5014-C lists 2.0, 3.0, 3.5, and 3.7-liter engines.

Choose this for a Q50 owner seeking a polished stainless axle-back with four-inch double-wall dual tips and broad stated model-year coverage. Its description does not identify engine variants, so that detail is a boundary.

Listed on Amazon as: Replacement For 2014-Present Infiniti Q50 STAINLESS STEEL POLISHED SILVER Muffler Axle Back 4" Double Wall Dual Tips Exhaust

#6

6. Extreme Online Store Burnt-Tip Axle-Back

• Material: Stainless Steel
• Material Type: Stainless Steel
• Compatible with Vehicle Type: Fits ALL 2014-2024 Infiniti Q50 Models
• Weight: 25 lb

Best for: Q50 owners choosing burnt dual tips.

Why it ranks #6: Fits all listed 2014–2024 Q50 models and pairs stainless construction with 4-inch double-wall burnt tips and a one-year defect warranty.

Four-inch double-wall dual burnt tips give this stainless-steel axle-back a distinctive stated rear-exit finish for all 2014–2024 Infiniti Q50 models. Its polished silver muffler section pairs that tip style with the listed axle-back format, focusing the change on the rear exhaust rather than a full system.

The broad stated fitment for 2014–2024 Q50 models is useful for owners seeking a replacement across those model years. Stainless-steel construction and a polished silver finish describe the muffler section, while the four-inch double-wall dual burnt tips supply its specific appearance detail. Because it is an axle-back, the listing identifies the rear-section scope rather than a complete cat-back layout. Buyers should weigh that limited system scope against their intended exhaust change; the supplied information does not specify included installation hardware.

Skip it if you want polished dual tips without the burnt finish; Extreme Online Store EXT-MD003 lists polished 4.5-inch double-wall tips.

This fits Q50 owners across the listed 2014–2024 range who want polished stainless axle-back construction with burnt dual tips. Choose another configuration if that tip finish or rear-section scope is not right.

Listed on Amazon as: Replacement For 2014-2024 Infiniti Q50 STAINLESS STEEL POLISHED SILVER Muffler Axle Back 4" Double Wall Dual Burnt Tips Exhaust

#7

7. aFe Power Cat-Back

• Material: Stainless Steel
• Material Type: Stainless Steel
• Compatible with Vehicle Type: Car
• Weight: 65 lb

Best for: 3.0L twin-turbo owners wanting cat-back gains.

Why it ranks #7: The 2016–2018 3.0-liter twin-turbo cat-back lists in-house gains up to 18 hp and 19 lb-ft, with resonators and included hardware.

A modular cat-back with dual resonators and a muffler-delete axle-back section is listed for 2016–2018 Infiniti Q50 3.0L twin-turbo models. aFe Power reports in-house dyno gains of up to 18 horsepower and 19 lb-ft of torque, pairing a measured performance claim with a full-system layout.

The 2.5-inch mandrel-bent 304 stainless-steel tubing and dual 4-by-15-inch resonators give this cat-back a defined material and acoustic configuration. Its modular design uses stock mounting locations and requires no cutting or modifications, supporting a more direct installation workflow. The dual black stainless-steel rear tips provide the listed appearance detail, while the muffler-delete axle-back section and resonators are described as producing an aggressive exhaust note. Fitment is specifically stated for 2016–2018 Q50 V6 3.0L twin-turbo models.

Skip it if you have a Q50 outside the listed 2016–2018 3.0L twin-turbo range; Extreme Online Store EXT-MD003 lists 2014–2024 models.

Choose this cat-back if your Q50 is a listed 2016–2018 3.0L twin-turbo and you want its resonated, modular layout. Its model-year and engine coverage is narrower than many axle-back listings.

Listed on Amazon as: aFe Power 49-36132NM-B Cat-Back Exhaust System

#8

8. Bull Boost Y-Pipe Kit

• Material: Stainless Steel
• Material Type: Stainless Steel

Best for: Twin-turbo owners wanting a bolt-on Y-pipe.

Why it ranks #8: Targets 2016–2023 Q50 twin-turbo V6 models, including Red Sport 400, with SS304 pipes and a stated bolt-on, no-cut installation.

A no-cut bolt-on Y-pipe kit gives 2016–2023 Q50 and Q60 V6 3.0L twin-turbo owners an airflow-focused replacement without requiring cutting, according to the listing. SS304 pipes and CNC-machined flanges combine material durability with a precisely formed connection point for the specified applications.

The application list names 2016–2023 Q50 and Q60 V37/CV37 twin-turbo models, including Sport and Red Sport 400 versions, helping relevant owners identify the intended platform. SS304 stainless-steel pipes provide the stated durable material, while CNC-machined flanges support precise fit at the connections. Because the kit is described as a direct bolt-on replacement with no cutting required, its installation approach avoids pipe cutting as part of the listed workflow. It is a Y-pipe kit, not a complete cat-back system.

Skip it if you have a Q50 outside the listed 2016–2023 V6 3.0L twin-turbo applications; Extreme Online Store EXT-MD003 covers 2014–2024 Q50 models.

Choose this if your Q50 is a listed 2016–2023 V6 3.0L twin-turbo application and you want a bolt-on Y-pipe with no cutting. Its application range is narrower than all-model Q50 axle-backs.

Listed on Amazon as: BULL BOOST 2.5" – 3" Y-PIPE KIT STAINLESS STEEL FOR 16-23 INFINITI Q50 Q60 CV37 V6 3.0L TT

#9

9. TEYOLIAO Exhaust Manifold Header

• Material: Stainless Steel
• Material Type: Stainless Steel

Best for: VR30 owners prioritizing stainless headers.

Why it ranks #9: Lists 2016–2024 Q50 VR30 twin-turbo fitment and 304 stainless construction, but is a manifold header rather than an axle-back or complete exhaust.

Mandrel-formed T304 stainless-steel construction anchors this header product for 2016–2024 Q50 VR30 twin-turbo applications. Its polished finish and TIG-welded CNC-machine flange are specified alongside smooth-radius bends, connecting its material and pipe shape to the listing’s focus on flow and durability.

The stated Q50 application is limited to 2016–2024 VR30 twin-turbo models, so the engine and year range are central fit considerations. Mandrel-formed T304 stainless steel and a polished finish provide the listed construction details, while smooth-radius bends are described as reducing turbulence and supporting exhaust flow. A TIG-welded CNC-machine flange supplies a named connection feature. The product is presented as an exhaust manifold header, so buyers seeking only an axle-back or a full cat-back should note the different system section.

Skip it if you need an axle-back muffler replacement rather than a header; Extreme Online Store EXT-MD003 is listed as a Q50 axle-back.

Consider this header if your Q50 is a 2016–2024 VR30 twin-turbo and you want the listed T304 construction and smooth-radius bends. It is not an axle-back muffler or cat-back system.

Listed on Amazon as: Exhaust Pipes For Infiniti 2017-2022 INFINITI Q60 VR30 Twin Turbo & 2016-2024 INFINITI Q50 VR30 Twin Turbo,Q60 Q50 Exhaust Manifold Header

#10

10. HKS Hybrid Cat-Back

• Material: Stainless Steel
• Material Type: Stainless Steel
• Compatible with Vehicle Type: Car
• Weight: 72.5 lb

Best for: Q50 Hybrid buyers seeking switchable sound.

Why it ranks #10: This cat-back is specified for the Q50 Hybrid VQ37, a narrower application than the broadly fitting Q50 axle-backs in this roundup.

A switchable valve that can implement a silence mode is the defining feature of this HKS cat-back, giving Q50 Hybrid buyers a listed way to change exhaust operation. The title specifies a VQ37 dual Hi-Power titanium-tip application, making model and configuration details central to choosing it.

The product is identified as an HKS cat-back for the Infiniti Q50 Hybrid with VQ37 and dual Hi-Power titanium tips, so buyers should start by matching those stated vehicle and exhaust descriptors. Its switchable valve is described as implementing silence, offering an operating choice rather than a fixed exhaust setting. HKS identifies itself as a total tuning-products manufacturer with exhaust-technology experience, but the supplied details do not provide dimensions or a specific year range. Confirm the named Hybrid configuration is the one you need.

Skip it if you need a stated model-year range before choosing; aFe Power 49-36132NM-B lists 2016–2018 Q50 3.0L twin-turbo fitment.

This suits a Q50 Hybrid buyer seeking a cat-back with a switchable silence function and the named VQ37 dual Hi-Power titanium-tip configuration. The supplied details do not specify its model-year coverage.

Listed on Amazon as: HKS 32009-KN001 Cat back Exhaust (Infiniti Q50 Hybrid Vq37 Dual Hi-Power Titanium Tip), 1 Pack