well depends on if you live where you need to be emissons legal. where i've got the car tagged i don't have to pass emissons so i cut the cat off and had a piece of pipe welded up in place. i personally like running the car w/out the cat. just sounds so much better to me as well as better performance. the exhaust will just smell much more rich but i haven't noticed anything different w/ my fuel mileage. of course i dont' get that great of gas mileage b/c my car is at 176,000 miles lol. the only thing you'd need to worry about is if you have an o2 sensor behind ur cat. then you would need to get a o2 sim to take car of that. like i said before, i enjoy running the car w/out the cat. i would recommend doin it but save the cat so you can put it back on if you don't like it. l8tr

 

well in my option i wouldnt go for anything too expensive, because no matter what you put on it the sound isnt goin to be worth anything over $400. i bought a rksport cat back system, because it was rather cheap, it sounds decent at lower to mid rpms, and i like the look of the dual-dual tips. i also cleaned out my cat which makes the exhaust note louder, but also at higher rpms it sounds a little tingy, so i would recommend replacing it with a straight pipe if you dont have to worry about emissions.

dan

 

yeah thats what i did, i had a guy weld me a piece of pipe where my cat used to be. all together i spend 160 on my muffler, pipes, and installation. then i paid bout 100 bucs for my chrome 3.5 inch tips. i just found a cheap place and had it done. l8tr,

 

Anybody hear a 3.4 without a muffler?? Hows the sound if you did. I just bought a 95 Firebird today and its quiet as hell, I need some noise.

 

its loud, but by no means sounds good

 

it is crap, very loud

all ive done was cut out my stock muffler n welded on a custom dual exhaust 'muffler' with dual-dual tips. Sounds nice n all, didnt cut out the CAT cuz of emissions, but it sounds better thn that stock single-outlet muffler

now to figure out if it gained HP or torque...