WARNING: Cancer (and/or Reproductive Harm)

    SKU: N/A Categories: , ,

    Fast Intentions is proud to present our G37 Coupe VQ37 Round Exhaust System.

    This cat back exhaust system is the premier upgrade for all G37 coupe owners looking to maximize the performance from their VQ37VHR V6 engine. Our exhaust system will enhance the sound that Infiniti created from the factory by making it deeper, smoother, and louder.

    Built as a direct OEM replacement, our exhaust system is easy to install with simple hand tools; no cutting or welding required. All of our exhaust components are T-304 stainless steel with 2.5″ tubing that is mandrel bent to maximize exhaust flow and efficiency. The X Pipe is designed to increase low end torque and maximize power throughout the entire RPM band. This exhaust system 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 aggressive appearance. In terms of overall sound level, this cat back is our loudest option.


    • Direct OEM replacement: no cutting or welding required
    • 2.5″ T-304 mandrel bent stainless steel tubing.
    • 6″ x 14″ round stainless-steel perforated core mufflers.
    • 4.5″ dual walled slash cut polished stainless steel exhaust tips.
    • 3/8″ thick mild steel flanges. All flanges are bright nickel plated 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.
    • Non resonated, or 18″ 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: 2008-2013 Infiniti G37 3.7L Coupe.
    • Compatible on Left- and Right-Hand Drive vehicles.
    • Not compatible on G37 Convertible.
    • Gaskets, hardware and installation instructions are included.
    • Hand built in the USA.


    • An increased average of 15 rear wheel horsepower & 10-foot pounds of torque over the factory exhaust.
    • Refining the factory exhaust note by increasing depth and volume.
    • Reduction in EGT (Exhaust Gas Temperature) by freeing up back pressure.
    • 47 lbs. w/ stainless steel mufflers; 16 lbs. lighters than factory exhaust.


    • 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




    G37 Coupe CAt Back Instructions