Alpha R35 GT-R “Widemouth” Downpipe Upgrade
Unsurpassed Performance, Durability and Sound
The Alpha Nissan GT-R 90mm Cast Widemouth Downpipes are the best performing and most durable on the market. During testing our shop GT-R with Alpha upgraded turbos saw gains across 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! 
Exclusive Benefits
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
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 Alpha Cast downpipes
Downpipe bracket hardware
Downpipe to midpipe gaskets
 
Specifications
100% 304 stainless steel cast inlet and outlet
100% 304 stainless steel center pipe with .065” wall thickness
1/2″ thick stainless steel flanges