Hey can anyone help me? i purchased a Ark Performance Exhaust and Berk HFC and the end result was pretty good but alot of rasp and drone. i am just wondering if anyone has suggestions on how i can possibly get rid of the rasp? replace it with RHFC? Also while the installation was being processed the Sensor had been messed up thus concluding in Engine Light to ignite. He had to weld the Catalytic Converter's bolt off due to the fact it wasnt coming off someone told me it might be the Header Sensor that needs replacement. Any idea guys? i would really appreciate any feedback. Thank You Guys

 

Welcome to the site, check your other post in the sedan folder. Only post one thread please.
Thanks. I'm closing this one.