The PRL Motorsports intermediate pipe is intended to be a direct replacement for the FA20DIT platform's restrictive 2-piece J-pipe / intermediate pipe assembly. Our intermediate pipe gives customers the ability retain the factory J-Pipe if they so wish or replace both units by purchasing our J-pipe to further promote exhaust flow.
Testing has shown that the intermediate pipe is the most restrictive of the two pieces if replacing just one. There is a common misconception that the J-pipe should be upgraded before or instead of the intermediate pipe. However, by simply looking at the pictures, it is clear to see that it impossible to have a smooth flowing transition from a larger 3" J-pipe to the smaller ~2.5" tubing, thus creating a bottleneck or choking point in exhaust flow. For this reason, we strongly advise upgrading the intermediate pipe first and foremost or looking into our or 3" Race J-Pipe/Intermediate Pipe combo for those who are looking for optimal spool and performance.