ok i really need some advise.
i have an almost mint 92 gt and have no idea how the fuck to take the bolts from the headers to the stock h-pipe off. i want to hollow out my cats because they really clogged like crazy and i cant stand this gas mileage. im gettin about 9 mpg and its all stock.
so my question is, how do i get those bolts off?

if i cant get them off im just goin to sell it, i cant have a car that gets gas mileage like this

 

wow, that thing was getting 15-16 for me.
spray some wd on the bolts,then long extension with a 5/8 or 16mm deep socket will get them Wes

 

1/2 drive with a long extension and a universal

 

it easier to just buy a offroad pipe.you can buy a used one around $50.

 

i tried wd-40, pb blaster, and torch. and i still doesnt want to come off.
but i didnt try a braker bar yet because i dont have on, but i put i long pipe one 1/2 drive.
is that about the same or is it different

 

Hollowing out your cats is A LOT more work than it's worth, bro... Check here, Corral, and Ebay for used offroad midpipes. As Harold said, you could find one for around $50 used. I've ran an o/r x on my 5.0 with stock headers/catback, and the sound was real cool. Smooth, louder but not obnoxiously so, and didn't have interior vibrations.

 

Try Surestop mufflers off of hwy 60. brandon area. they will do anything you want exhaust wise.

 

unbolt the headers from the heads and replace the entire exhaust, that factory shit is no good....problem solved

 

302gts- thanks, i like smooth without vibration

and we ended up brakin the header bolts because the guy who gave me the car gave me a set of MAC headers. BUUUUUUT they dont fit

 

they do fit wes