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Exhaust Exhaust Pipes, Systems and Components

Stillen

304 Stainless Steel Axle-Back Exhaust System

$900.15 $853.81 Save $46.34

SKU: 504442

In Stock
In Stock
Ships by Aug 4
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Stillen 504442 is an axle-back exhaust system meticulously crafted for the 2014-2015 Infiniti Q50 Sedan [V37]. This performance upgrade is constructed from top-grade 304 stainless steel, ensuring durability and a premium look. The polished 304SS dual wall tips not only enhance the vehicle's aesthetics but also contribute to the system's aggressive appearance. It delivers a distinct engine note, providing a mild tone at idle that transitions to an aggressive sound under throttle, a signature Stillen symphony that enthusiasts rave about. The free-flowing performance mufflers and piping, which are mandrel-bent for unimpeded exhaust gas flow, contribute to these performance gains. Additionally, Stillen design enhancements over the stock system can lead to improved MPG at cruising speeds. Installation is straightforward with its bolt-on design, and the system is built to last, backed by a limited lifetime warranty. This axle-back exhaust is compatible with both non-hybrid and hybrid models of the specified Infiniti Q50. It is proudly made in the U.S.A.

MIA's Description

The Stillen 504442 is an axle-back exhaust system designed for the 2014-2015 Infiniti Q50. Constructed from 304 stainless steel with polished 304SS dual wall tips, it aims to enhance vehicle performance and aesthetics. This exhaust system offers an authoritative tone under throttle and a milder sound at idle, complementing the factory exhaust cutout.

Fitment

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Specifications

BrandStillen
Part Number504442
CategoryExhaust

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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