For Kooks Long Tube Headers Only: this H-pipe is only compatible with Kooks long tube headers with a 3" collector.
Custom Tuning Required: this H-pipe will require a custom tune for proper operation and power gains, as well as to avoid engine damage. Call Stage 3 at 1-877-578-2433 for custom tuning options.
This H-pipe may not meet emissions requirements in your area. Call Stage 3 directly at 1-877-578-2433 for more information.
Old Kooks Part Number: 60-42-CATH.