The Pettit turbo downpipe is a direct bolt in replacement for the RX-7's flow restrictive pre-catalytic converter. Constructed from HD 3-in. stainless steel with heavy duty 1/2" thick flanges to better handel the 13b turbo's high exhaust temps as well as prevent warpage and leaks. It also has the O2 sensor port relocated further downstream helping to extend sensor life.
Direct bolt in for the stock Mazda RX7 downpipe and mates to the OEM turbos.
Items/Services recommended for use with PR downpipe: