how restrictive are cats
Thread Starter
Newbie
Joined: Mar 2002
Posts: 33
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From: san diego
how restrictive are cats
I want to get a header this would loose 1 cat and replace the other cat with a pipe .dose aanyone know how restrictive 2 cats are??? The rear muffler is already gone 
Evolved Member
Joined: Dec 2001
Posts: 2,722
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From: Up to 80 miles north of Gilroy
I wouldn't worry to much about cats and just having switched out the muffler as much as I'd worry about the internal diameter of the exhaust piping itself. Upgrading to full 2.5" or 2.25" piping will fit your needs.
