Originally Posted by CTR Coupe
Ok first of all 18” are way too big for a little civic. It will slow you down so much and the ride quality will suck.
In regards to the air filter get a panel filter that fits in your standard airbox and rip out the resonator and all the rest of the junk underneath the airbox. This is a much better option than a pod filter on a short ram intake.
Grab yourself a twin loop muffler from one of our traders (TODA_AU or EGSi) and take it to your local exhaust shop for a custom cat back 2” system.
I would seriously rethink the 18” but that’s just me. I’d rather have some racy looking 16” than massive chrome things. Not to mention tires cost a mint.
i hope this helps.