ISR Performance Exhaust Y-Pipe - Nissan 370z / G37 0 05 May 2016 17:06 Enjuku Racing ISR Performance Exhaust Y-Pipe - Nissan 370z / G37 The ISR Performance 370z / G37 Y-pipe utilizes 2.75" stainless steel piping along with bellowed flex sections running from the 2 bolt catalytic con..Price: $189.99