ajcarr44@aol.co.uk
Registered user
Hi all, I have an 04 GSA which is running fine, with a Y pipe and standard slip on exhaust. I'm thinking of putting the cat back on as to help it run better? And hopefully bring the noise down a little bit under load, as it does get quite loud under full throttle. Is it worth it? For those who have run with and without cats, many thanks, Ashley