Replace your restrictive worn out catalytic converters with these free flowing, all Stainless Steel 2-1/2" high flow catalytic converter X-Pipes or off road non catalytic versions.
They sound great and noticeably improve performance as well. Stock Mustangs will pick up about 8-14hp. Modified cars can pick up 20hp or more!
Warning: This part has been designed and is intended for off-road application only. Installation of this part on a vehicle that is driven on public roads may violate U.S. and Canadian laws and regulations.
CA Residents: Cancer and Reproductive Harm WARNING