Supra Forums banner

1 - 4 of 4 Posts

·
Moderator
Joined
·
4,932 Posts
You're in CA, I don't think you can modify anything on your exhaust without it being illegal. Someone else will have to confirm.

Doing just a high flow cat won't net you very much horsepower though, the exhaust as a whole will be a huge difference.
 

·
Banned
Joined
·
85 Posts
Discussion Starter #4
Hi yes there are some aftermarket legal catalytic converter that are also carb certified do you know if there is a high flow one?
 
1 - 4 of 4 Posts
Top