hi guys is it okay to thrash my integra VTIR 1994 around with a stock exhaust, And just wondering
if i am bottle knecking the motor at all, i have done CAI but thats it and i give it alot.

ANd also What is the size of the stock exhaust from CAT-BACK is it 2.25 inch???

Also could i track race my integra with a stock exhaust system aswell?