well i added a high flow cat and exhaust to my civic 4dr and it improved it really good, you can tell the difference on how fast it gose now but thats what i can tell from it my parts are from ebay tho... cause im on a really low budget
Originally Posted by 1995Civic
Since when did exhaust give you that much to begin with, let alone that much of a difference, unless its turbo?? Oh well...