Quote Originally Posted by Tran
might lose a little bit of hp/tq with no back pressure, and probably the most obvious, emissions. but i don't know about burning out an exhaust valve. probably get annoying too.

and i think you are thinking of "flex pipe" for the pre-cat.
His car isn't clear on emissions anyway because his O2 sensor went bad recently.

I guess it's just a matter of fixing that pipe back then yea? Appreciate the info!