hassan111

Hay guys I recently put a exhaust system on my car and the guy sold my oem exhaust I really don't like the sound and want to go back to the oem one but it's 5k for a new system the exhaust is like 2.5inch piping and the stock is a 2inch I want to know if I just put the back end of the exhaust back on will that affect the engine because it's going from a bigger pipe to the smaller one ? Also if anyone has a oem exhaust and they are willing to sell it im interested cheers