Full 3" Straight Testpipe. Replaces Factory Cat. Direct bolt on Includes all gaskets and hardware.
** All ISR Performance Products are Designed for Off Road Use Only **
ISR Performance 1.8L NA Miata Resonated Cat Delete Pipe (1994-1997) *Gaskets not included
The ISR Performance test pipes are constructed using high quality stainless steel. These test pipes utilize stock flange locations so they can be used with stock components or...
The ISR Performance test pipes are constructed using high quality stainless steel. These test pipes utilize stock flange locations so they can be used with stock components or...
ISR Performance high flow cats are custom made utilizing Magnaflow 300 cell spun Metallic substrate to be less restrictive than stock, Letting you gain power while still...
ISR Performance high flow cats are custom made utilizing Magnaflow 300 cell spun Metallic substrate to be less restrictive than stock, Letting you gain power while still...
The ISR Performance 350z / G35 Y-pipe utilizes 2.5" stainless steel piping along with bellowed flex sections running from the 2 bolt catalytic converter flanges back to the high...
The ISR Performance 370z / G37 Y-pipe utilizes 2.75" stainless steel piping along with bellowed flex sections running from the 2 bolt catalytic converter flanges back to the...
The all new ISR Performance S-Chassis LS Swap Y-Pipe is designed to provide a fabrication free exhaust solution for users swapping LSx motors into their S13 or S14!
ISR Performance Exhaust Y-Pipe - Hyundai Genesis Coupe 3.8L
The ISR 4-2-1 Stainless Steel Header Expanded to a 3" Flange to enable easy bolt on application to stock cat or any aftermarket testpipe and exhaust system.