WARNING: Cancer (and/or Reproductive Harm)

    Fast Intentions is proud to present our Infiniti Q50 VQ37 Cat Back Exhaust System. This cat back exhaust system is the premier upgrade for all Q50 Sedan owners looking to maximize performance from their VQ37VHR 3.7L V6 engine. Our cat back exhaust system will enhance the sound that Infiniti created from the factory by making it deeper, smoother, and louder.  In short, the addition of our cat back exhaust system will refine your factory exhaust note. Built as a direct OEM replacement, our exhaust system is easy to install with simple hand tools; no cutting or welding required. Our X Pipe is designed to increase low end torque and maximize power throughout the entire RPM band. The exhaust note is unobtrusive at idle and cruising speeds; but comes to life at wide open throttle. With the addition of our cat back exhaust system, you will improve the aesthetics of your vehicle with its sporty and classy appearance.

      • Direct OEM replacement: no cutting or welding required.
      • 2.50″ mandrel bent T-304 stainless steel tubing keeps interior noise resonance to a minimum.
      • 5″ x 9″ oval, 14″ long polished stainless steel perforated core mufflers.
      • 4.5″ dual wall, polished stainless steel exhaust tips.
      • Front flanges are 3/8″ thick mild steel with a bright nickel-plated finish to eliminate potential corrosion.
      • All flange connection points are precision TIG welded around the outside.  The inside is sanded down and port-n-polished for a smooth exhaust flow.  This process reduces exhaust turbulence at the flange connection points.
      • Slip fit connection points utilize Torca Accuseal clamps.  They are a simple and effective way to connect exhaust system components.  Unique seal and high clamp loads are provided without permanently distorting the exhaust components, allowing the flexibility to disassemble for service.
      • Non resonated or 14″ stainless steel perforated core resonators within the X Pipe. Resonators reduce interior noise without affecting performance.
      • Limited 3-year warranty on all welds, craftsmanship, mufflers and tips.
      • Application Specific: 2014-2015 Infiniti Q50 Sedan 3.7L VQ37VHR
      • Compatible with Rear Wheel Drive & All Wheel Drive models.
      • Gaskets, clamps and hardware are included.
      • Hand built in the USA.


      • Refining the factory exhaust note by increasing depth and volume.
      • Reduction in EGT (Exhaust Gas Temperature) by freeing up back pressure.


      • This product is hand built (in house) to order with a standard lead time of 3 – 5 weeks. Once your order is placed, you will receive an invoice with your estimated shipping date. Note: The lead time may fluctuate less than 3 or greater than 5 weeks based on order volume.
      • California customers are subject to sales tax.
      • Customers outside the continental U.S. are subject to additional shipping charges.
      • Our Prismatic finish is a custom coating process.  Color combinations may vary.
      • Image(s) shown may not reflect actual product.


    Model Year

    X Pipe




    Tip Finish



    Q50 Sedan Cat Back Installation Guide