Hey guys, just wanted to know if the AP downpipe will throw a code or not? Its a 3' and will be bolted up to the stock cat for now. Will there be any issues? Any help would be appreciated. Thanks!

 

a downpipe isn't going to make you throw a code.

 

plus one. only way youll really throw a code is with a test pipe.

 

Well if thats the case, then tell me this. My friend and I put new brake pads on my car. Then I was looking that the muffler and decided to take it off to see if it did anything. That night nothing, but the following night it threw a check engine code... So thats only reason why i asking.