I was in the process of taking off my cat off the stock manifolds and broke the last freaking bolt on the drive side!!!!! I have everything off to put on a new Y-pipe. How dangerous is it to not have that one bolt? I plan on getting it fixed ASAP, but just need to know what if any problems will arrise? PLEASE HURRY!!!

 

You'll probably have a nice exhaust leak. Only possible damamge is asphyxiation.

 

what if any damage could there be to the engine?

 

where is the freaking help in here!!!!!!!!!!!!!!!!!!!!!

 

It probably won't do anything to your Engine other than adding a slight whistling tone and changing your Exhaust Note a bit until you fix it...

 

there shouldnt be any engine damage. if an exhaust pulse causes frsh air to be sucked in pass an O2 sensor, it will run a little rich, but not enough to wash out rings or anything.

 

You're going to have an exhaust leak that's going to sound like **** and drive you crazy.

 

You're not going to damage your engine. You could damage your rear O2 sensor with the cold air entering the exhaust stream, but if you're taking off your cats I'm going to assume you're not really concerned about that. Your rear O2's just monitor how well your cats are working. An exhaust leak that far downstream is not going to burn a valve or anything. If the bolts you were removing and busted were the head/manifold bolts you got problems. But if it's just the bolt holding the cat onto the manifold, welcome to the club. Exhaust work sucks.

Abe

 

hah, calm down man. It's just an exhaust leak.

 

Should have READ my post.
"Only possible damage is asphyxiation." That meant just that.

 

all is good now i salvaged a bolt off of the old y-pipe. similar to the one on the flange but longer and managed to save it for now. only real problem was drilling (the broken bolt) that son of a b**ch out!!!!!!! man it was an interesting job. thanks for all who replied

 

Thank god, I can get some sleep now

 

You do realize that Futral Motorsports is about 45 minutes away from you, right?