COBB Tuning has done it again. This time it is with the 3.5-inch
Stainless Steel Y-Pipe for the Nissan GT-R. The stock y-pipe with factory
catalytic converters is a restrictive element in the GT-R's exhaust system. The
COBB 3.5-inch SS Y-Pipe reduces exhaust restrictions and allows the GT-R to
make more power with less effort.
This catted version
of the COBB 3.5-inch SS Y-Pipe uses custom-spun high-flow metal substrate
catalytic converters that improve flow while protecting the environment by