I have on 02 gt with flowmaster exaust and a stock h pipe, i was wondering if i can take my catalytic converters off, or if i have to get an aftermarket h or x pipe, and if i do take off the catalytic converters will the exaust be noticably louder?

 

You can gut the cats or get them cut out and have straight pipe welded in. Yes it will be louder. You will have a CEL on though.

 

Thanks, how much should it cost to take them off and have straight piping put in, and would O2 simulaters fix the CEL

 

Umm depends on the welder. You could do it yourself with a sawzall and some piping. All you would need other than that is some adapters and clamps. Welding would be a better idea though. Probably $50 through a welder.

 

just buy a aftermarket midpipe.

 

My buddie has a 97 Z28, he cuts the cats off so its basically just strait pipes goin into the mufflers from the headers. It really bad ***, and loud as ****.

 

Would a shop even do it since it isn't legal to remove them?

I myself am trying to figure out what to do with mine, if anything. I figure even if I cut 'em out myself I'll never get past the guy with the mirror down at emissions next year...and not sure if just changing the mid-pipe is worth it for sound/power.

 

my friend had his cut off, but he also had a x pipe put on, im sure a shop will do it if you just tell them your going to use it for off road use only