I have a 2000 gmc and one of the cats laid down.. and was debating getting 2 new cats and just get a offroad pipe and have the rear 02 turned off..

Really don't want it to be loud (been there done that)

Cats installed are close to $400 or so.. and Offroad with tune about $225..

Anybody here running offroad with full exhaust .. how loud is it..

I have a Magnaflow catback on it... Thanks!

 

Lose the cats and have it tuned, and save the money. I have no cats and a dual inlet and outlet muffler and it isn't bad. I have a Corsa resonator for sale on here that I need to post pictures of. If you take the cats off and it is too loud and you aren't happy you could buy that resonator from me and still be cheaper than replacing the cats, and with the tune and everything you would make more power and get better gas mileage

 

I just put a Magnaflow on my truck.. no cats and thru the STS turbo then thru the Magnaflow and its quiet, really quiet! I love it. its a 5x8 24" long.

 

Thanks for the responses.... Does Pacesetter make an offroad y pipe for stock manifolds?

 

nope..

 

Great.. heck I will just bust out the cats.. one is already loose.. that's free..

get some new front 02 sensor's and get the tune for the rear's..

 

just cut the cats out and then weld in some pipe and there ya go...

 

It'd be easier to get it inspected with hollowed cats.

 

I would do that, but really don't want to hack it up.. just worried about the sound it might make with the empty cats.. don't want a swooshing noise.. I know the Mustangs did.. but that was 4 small cats and not 2...

 

true on that forgot about inspection i know here they dont do none of that..