Exhaust Exhaust Pipes, Systems and Components

Fast

TDX Cat Back Exhaust System

$1,449.00

SKU: FI-370-CB-SS1x-xx

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In Stock
Ships by Aug 2
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Fast Intentions 370Z TDX Cat Back Exhaust System is engineered to unleash the full performance potential of the Nissan 370Z's VQ37VHR V6 engine. Crafted from 2.5-inch T-304 mandrel-bent stainless steel tubing, this system ensures optimal exhaust flow and durability. It features standard 6" x 14" round polished stainless steel perforated core mufflers and 4.5" dual wall, resonated, polished stainless steel exhaust tips. Optional upgrades include carbon fiber mufflers and 100-cell Mil Spec race catalytic converters, which can reduce raw fuel smell with minimal performance impact. Installation is straightforward as it's designed as a direct OEM replacement, requiring only simple hand tools with no cutting or welding necessary. The system includes gaskets, hardware, and installation instructions. The flanges are 3/8" thick mild steel with a bright nickel plating to prevent corrosion, and they are welded internally, then sanded and port-n-polished for smooth exhaust flow, reducing turbulence. Resonators within the X Pipe (12" or 18" stainless steel perforated core) help reduce interior noise without sacrificing performance. The Fast Intentions 370Z TDX Cat Back Exhaust System offers significant performance benefits, including an average increase of 20 rear wheel horsepower and 11 foot pounds of torque over the factory exhaust. It also refines the exhaust note, increasing its depth and volume while reducing Exhaust Gas Temperatures (EGTs) by freeing up back pressure. The system is hand-built in the USA and comes with a limited 3-year warranty on welds, craftsmanship, mufflers, and tips. This exhaust system is specifically designed for the 2009-2021 Nissan 370Z Base, Sport, Touring & NISMO models and is compatible with both Left and Right Hand Drive vehicles. The lowest point of the exhaust, the mufflers, sits no lower than the OEM exhaust system.

MIA's Description

The Fast Intentions 370Z TDX Cat Back Exhaust System is a premier performance upgrade for your VQ37VHR V6 engine. It is designed as a direct OEM replacement, requiring no cutting or welding for installation with simple hand tools.

This system enhances the factory exhaust note, making it deeper, smoother, and louder, while the X Pipe design increases low-end torque and maximizes power across the entire RPM band. The exhaust note remains unobtrusive at idle and cruising speeds but becomes more pronounced at wide-open throttle.

Fitment

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Specifications

BrandFast
Part NumberFI-370-CB-SS1x-xx
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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