i was just reading up on the safely modding your 3800 post and i have some questions.
if i have a downpipe and ubend delete already should i just go with the plog? or go with headers? and part of my exhaust is starting to rust, so would a catback be best? it said that they are rumored to harm the cars performance tho?
ooh and whats some good tips? that arent super expensive.
and input helps. thanks