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2014-15 Infiniti Q50 Stainless Steel Cat-Back Exhaust System

MSRP $1,491.53
2 reviews Rating 0 0 5
2 Review(s)
  • 304 Stainless Steel Construction
  • Polished 304SS Dual Wall Tips
  • Authoritative Tone Under Throttle
  • Fits Non-Hybrid and Hybrid Models
  • Limited Lifetime Warranty
SKU: : 504440
Mfg Part # : 504440


STILLEN is proud to release the 2014 Infiniti Q50 Sedan Stainless Steel Exhaust System.

STILLEN has long been associated with Infiniti tuning parts, creating high performance products, and meticulously crafted exhaust systems that have proven time and again to produce the maximum horsepower possible. With the introduction of the 2014 Infiniti Q50, STILLEN immediately went into R&D utilizing their many years of experience with VQ engines, and the results are fantastic.

The STILLEN Q50 cat-back exhaust system has an aggressive tone under hard acceleration, but mellow during cruising, with that unmistakable STILLEN sound. The free flowing performance mufflers and tips are constructed of 304 Stainless Steel for long life, and includes a limited lifetime warranty. The piping is mandrel bent for smooth flow, and fuel mileage gains can be expected at cruising speeds.

STILLEN Infiniti Q50 Cat-Back Exhaust Sound Clip:



About STILLEN Parts & Accessories

Steve Millen Sportparts, Inc. and STILLEN humbly started their race to the front of the pack in 1986. Starting with aftermarket mini-truck appearance packages, we quickly found ourselves fulfilling customer's requests to build products for other vehicles such as vans and full-sized trucks.

With that came performance parts, suspension pieces, and upgraded brake products such as big brake systems. Capitalizing on his racing career, and knowing what it took to make sports cars perform like no other, it was only natural for Steve Millen to branch out into the import car scene. Over two decades later, we offer a full array of products encompassing styling, performance, handling, and braking products for just about any car, truck, or SUV.


  • 2014 Infiniti Q50 - 3.5 L; 6 Cyl;
  • 2014 Infiniti Q50 - 3.7 L; 6 Cyl;
  • 2015 Infiniti Q50 - 3.5 L; 6 Cyl;


2014-15 Infiniti Q50 Stainless Steel Cat-Back Exhaust System

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  • Happy adeitionrst

    by James
    My car is a base 2014 Q50 AWD. I added this exhauast along with the Stillen high flow catalytic converter. The tune shop i used was excellent (MacAutosport n Denver). The shop got 40 more horsepower to the wheels! I am not sure what that tranlates at the crank, but there is no getting around noticing the difference. Now you can finally hear the motor and the sound is awesome. The power is finally tapped too - now my car drives like its boosted, it really hooks up... not anything near the same car as stock. I cant wait to drive the new 400hp 3.0 turbo just to compare. This is the first time I've had a car that had all the power I want, and I've had a few, lol! I have been able to relax on the idea of actually supercharging. The Q50/VR37 has awesome potential and Stillen can get you right into it!
  • William Whitlatch

    by William Whitlatch
    Perfect sound when you want it and quite when you don't. Sound is deep, throaty, and mellow. Love it.