Due to recommendations from SpeedForSale, T1R recently revised this exhaust system's rear piping from 70mm up to 76mm, making it among the largest piping diameter exhausts (non-V banded) you can get for the GT-R!

T1R is the first to offer 90mm stainless steel exhaust system for the GTR R35 in the market. The 90mm main (intermediate) pipe splits into dual 76mm pipes that go through dual mufflers and out four VERY large exhaust tips. This exhaust and the Titek Titanium are the best flowing exhausts on the market for the GT-R. By up-sizing the exhaust pipe, it improves exhaust efficiency to lead out the maximum potential of the VR38DETT engine. Specially designed muffler for extra resonance is to create high quality exhaust tone and to reduce exhaust droning.

Beside power, weight reduction is also one of the concerns. With 1.2mm of thickness, this keeps the weight down as much as possible without sacrificing the durability of the exhaust. As a result, the exhaust weight has been reduced.

T1R 90R exhausts are constructed with SUS304 aircraft stainless steel with professional welder by using TIG welding process. The excellent craftsmanship ensures the impeccable quality of the products.

From the dyno test, it gained 32whp (wheel horse power) and 24ft/lbs of torque at 6400rpm.

Specification:

• 90mm main pipe splitting to dual 70mm pipes
• SUS 316 stainless steel
• Twin cross muffler design
• Dynoed with Y-pipe, +27whp peak (+29whp at 6000rpm) Here is the video