I have a '90 Civic Si and a '90 CRX Si. The CRX is bone stock except for '99 Si wheels and tires. The Civic has no catalytic conv., '90 CRX wheels, HKS cat back exhaust, and some kind of chip in it (the guy wasn't sure what kind but there seems to be no rpm limiter). What I'm wondering is this: Should I ditch the exhaust and possibly make some dough on it after I purchase stock parts from Honda or keep it? I'm wondering if it will add some kind of value when and if I go to sell the car versus having the stock setup. Thanks for your help.
Lew

 

Oh, I forgot to mention that there is a shop that will help me to fit it to the CRX.

 

well I had an HKS exhaust before, I loved it. You probably won't get that much for it. I say keep it. it's a damn fine exhaust.