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AMS Downpipes - GTR R35

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Price:
$1,399.95
SKU:
AMS-DP
Brand:
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Product Description

The AMS Nissan GT-R 90mm Cast Widemouth Downpipes are the best performing and most durable on the market. During testing our shop GT-R with AMS upgraded turbos saw gains accross the power band of 100 wheel horsepower and over 130 ft lbs of torque with this simple bolt-on!  Turbo spool-up was also improved by almost 400rpm!  

Unparalleled Durability and Performance through Proper Engineering

Our downpipes perform better and are not prone to cracking like the alternatives offered by the competition.  Their versions have many welded seams which are prone to failure.  

By casting these downpipes in robust 304 Stainless Steel we were not limited by the design restraints of hand fabricated construction.  The AMS engineering team utilized Solidworks (3D CAD software) to blueprint the inlet and outlets with smoother features and geometry to optimize exhaust flow. They also provided thick flanges to prevent exhaust leaks and utilize the factory mounting hardware for OEM like fitment. 

Most other systems implement 76mm (3”) downpipes that can cause unnecessary backpressure. By using a larger 90mm (3.5”) primary pipe we were able to optimize exhaust gas flow, freeing up horsepower while improving spool time and throttle response.  

An exhaust note that is music to your ears

AMS Widemouth Downpipes offer a more pronounced, throaty exhaust note under wide open throttle yet are subdued at idle and while cruising.  A perfectly balanced sound for the ultimate all around supercar!

Buy it once; enjoy it for the life of the car

The AMS Nissan GT-R 90mm Widemouth Downpipes will easily support any future modifications.  Combined with unrivaled fit, finish, durability and performance you can enjoy them for the life of the car.

The AMS Widemouth Downpipes are the ideal balance of appropriate sizing and geometry resulting in a perfect equilibrium of performance, sound and fitment. 

Features

 

  • Big horsepower increases throughout the powerband
  • Improved turbo spool and throttle response
  • Cast construction offers added performance and reliability over the competition
  • Pronounced, throaty exhaust note under wide open throttle yet is subdued at idle and while cruising
  • Large 90mm (3.5”) primary section for optimal exhaust flow
  • Available with or without steel core high flow catalytic converters
  • Stock like fitment with no chassis clearance issues
  • Bolts up to the stock mid-pipe or most  aftermarket systems
  • Precision TIG welded with unrivaled fit and finish

Kit Includes

 

  • Two 90mm AMS Cast downpipes
  • Downpipe bracket hardware
  • Downpipe to midpipe gaskets 

Options

 

  • Without Catalytic Converters
  • With Catalytic Converters

Specifications

 

  • 100% 304 stainless steel cast inlet and outlet
  • 100% 304 stainless steel center pipe with .049” wall thickness
  • Steel core 90mm stainless steel catalytic converter (optional)
  • 1/2" thick stainless steel flanges

Applications

 

  • 2009 and up Nissan GT-R
  • Fits all USDM, European and JDM Models

Product Notes

  • "Extremely high temperatures can result in destruction... Fuel, oil and antifreeze cause a different type of brick destruction. Under normal operating conditions, the catalytic process doesn’t begin until temperatures inside a converter reach 500 to 600 degrees (F). If air/fuel ratio is on target, and the exhaust is free of contaminants, internal converter temperature stays at about 1200 degrees. But when unburned fuel enters the picture, temperatures can reach 2200 degrees and either burn the precious metals out of the washcoat, or literally cause a melt down of the bricks. Extremely high temperatures can also result in destruction of the mat that's wedged between the bricks to the converter case.  Oil and antifreeze also cause elevated temperatures, but as the converter tries to burn (oxidize) these compounds, a residue, which plugs up the bricks is formed. At this point, the converter not only looses its effectiveness, it also becomes very restrictive to exhaust flow, which kills horsepower.

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