guys please help me out with this, one of my buddies removed his entire exhaust system from the muffler up to the headers, all he has no on the car is the stock headers, no muffler no y pipe, no cataylictic convertor nothing, he says that the engine will be able to breath better now and create a stronger running engine. He has a camaro like mine chevy 350 his is a street car he does not go to the track just messes around on the street expect for his air cleaner wich is K&N his car is stock...is this safe to do? will it harm the engine? he is telling me i should do it on one of my camaros what do you think should i remove my entire exhuast system except for the headers?