ISR Performance Stainless Steel 3" Downpipe - Nissan Skyline R34 GTT

The ISR Performance stainless steel 3 inch downpipe for the Nissan Skyline R34 GT-T replaces the restrictive factory downpipe on the RB25DET with a full 3 inch stainless pipe. The downpipe is the first section after the turbine housing, so opening it up has a direct effect on spool and exhaust backpressure, which is why it is usually the first exhaust part changed on a turbocharged Skyline.

Specifications

• 3 inch stainless steel construction
• Direct replacement for the OEM downpipe
• 3-bolt and 2-bolt flange connections

Included hardware

• 1x 3-bolt gasket
• 1x 2-bolt gasket
• Associated mounting hardware

Fitment

Intended for R34 Skyline 25GT-T coupes only. Sedans and other R34 variants are not covered.

Install tips

Factory exhaust studs on a Skyline of this age are often seized, so soak them with penetrating oil ahead of time and have replacements on hand. Combine this downpipe with the ISR GT Single catback for the R34 GT-T to run 3 inch piping from the turbo to the tip. Expect a louder, more turbo-forward sound under boost once the factory restriction is gone.

All ISR Performance products are designed for off-road use only.