AMS Nissan GT-R 90mm Race Exhaust

AMS Nissan GT-R R35 90mm Race Exhaust

The AMS Nissan GT-R 90mm Race Exhaust is one of the most free-flowing performance-based exhausts on the market. Through our many years of experience in the design of aftermarket turbo exhaust systems, we noted that a higher level of performance could be achieved with improved routing and increased tube diameter over the existing stock GT-R exhaust design. While the stock and many other popular exhaust systems on the market feature intricate bends that would impede upon efficient exhaust flow, AMS decided to develop a system that would incorporate mild bends and deliver exhaust gases from midpipe to tip in the most direct way possible without sacrificing fitment. This, coupled with a large 90mm primary pipe that gently flares into two 76mm secondary pipes made it possible to further reduce undesired backpressure and turbulence. To cap it off, four polished OEM-style tips were chosen to continue our overall goal in the AMS GT-R engineering project – which was to retain as much OEM-styling as possible in order to build some extremely potent stock-appearing GT-R’S.

This race exhaust is a two-piece system constructed of 100% stainless steel with all seams and flanges professionally hand TIG-welded in-house at AMS. For added durability, a 3/8” thick flange was incorporated into the design for a clean and secure seal to any stock, AMS brand or other brand midpipe featuring stock mounting dimensions and features. In addition, a v-band clamping system at the mid-section ensures an extremely solid seal without the use of a gasket and allows for minor rotational adjustments to ensure excellent fitment.


  • Large 90mm (3.5”) primary section for optimal exhaust flow
  • Precision TIG welded
  • 100% 304 stainless steel construction
  • No use of mild steel hangers
  • Stock like fitment with no chassis clearance issues
  • Bolts up to the stock mid-pipe and most aftermarket midpipes
  • Includes v-band clamp and hardware
  • Unrivaled fit and finish


  • 09 + Nissan R35 GT-R

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The goal of AMS is to provide the highest quality, best performing products available.
By utilizing research and development and rigorous testing programs AMS will never compromise the quality or performance of our products.

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