looking to de-cat my P1. Im currently running a HKS SuperDrager system and have one cat left to get rid of...
What Pipe should i look for ? should i stick with HKS or are there better that will bond with the system ?
Also, do i have to do anything with the ecu ? or something else ?

 

Steer clear of the HKS downpipe. H&S open neck or similar is the answer.