Rep Power: 372

Why would i be hearing alot of what sounds like air coming out of my exhaust at or near the cat converter or possibly the header... It sounds like its pushin air out at those parts when i push the gas... I have no idea what the problem is..

 
Rep Power: 261

wut header and downpipe are you using? gimme some more info.. i had this problem but i need more details to specifically help you

 
Rep Power: 372

i have a dc sports short header and a random technology cat converter with dc sports catback

 
Rep Power: 261

jack your car up and put two jackstands on the front. Use the jack itself to jack the downpipe up onto the header (be very gentle) the spring screws should get more play thus you'll be able to tighten the downpipe(cat) to the header more securely. If you dont tighten the header and downpipe correctly you'll risk overheating your car on long highway trips. And burn up your fan, o2 and temp wiring.

 
Rep Power: 372

so thats what my problem is basically? I need to make sure all bolts are tightened?

 
Rep Power: 261

sometimes headers and downpipes don't mate perfectly...so you'll have an exhaust leak. Your bolts are tightened but they need to be tightened more to stop the leak. BTW do you have a proper gasket between the header and downpipe. If not go to a exhaust shop and get them put it on and bolt it up for you. Shouldn't cost alot, it'll run you maybe $6 for the gasket. and 5-20mins for them to bolt it up properly without any leaks. Mine was so loud i couldn't be on the phone when driving

 
Rep Power: 372

ok man thats what i thought it might be! thanks