Many Exhaust Questions
02-12-2003, 09:44 PM
#1
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Join Date: Jan 2003
Posts: 119
Many Exhaust Questions
Ok, the time is near for exhaust. I don't know much yet but thats why I am here 
. I was planning on getting a loudmouth catback system for my ls1 formula. I was told that no cats is the way to go, but other exclaim that its too loud. I want a mild note at idle but a badass note at WOT. Should i go for just the slp catback or slp no cats or another muffler or what? Another question is the process of removing the cats and replacing them. I know nothing about that either. Im sorry im a little ignorant. Thanks to all in advance.
Trevor
. I was planning on getting a loudmouth catback system for my ls1 formula. I was told that no cats is the way to go, but other exclaim that its too loud. I want a mild note at idle but a badass note at WOT. Should i go for just the slp catback or slp no cats or another muffler or what? Another question is the process of removing the cats and replacing them. I know nothing about that either. Im sorry im a little ignorant. Thanks to all in advance. Trevor
02-13-2003, 12:41 AM
#3
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Join Date: Jan 2002
Location: Houston, TX
Posts: 606
Yeah, Borla will be nice, especially since it has an adjustable plate, so if it's too loud, close up the plate (it'll still be decently loud even w/ it closed).
As for gutting your cats, don't plan on passing emissions w/ that. You can do it yourself, but it'll be a pain in the *** if you don't know much about exhaust. If you can weld, you can unbolt the cat from the y-pipe and then cut it off on the other side, then just take a pic and jam the hell out of the inside of the cat to get all the honeycomb material out, then simply bolt/weld it back on. If you can't weld, you can take off the whole setup and do it, which is a definite pain in the ***. Personally I wouldn't guy a cat, I'd stick w/ hi-flow ones, but if you really want to do it, I suggest you find a muffler shop that's ok w/ welding an empty cat on. Then do the unbolt and cut it off, gut it, then drive w/ basically open headers to the muffler shop (that'll be fun
) and get them to put it back on.
As for gutting your cats, don't plan on passing emissions w/ that. You can do it yourself, but it'll be a pain in the *** if you don't know much about exhaust. If you can weld, you can unbolt the cat from the y-pipe and then cut it off on the other side, then just take a pic and jam the hell out of the inside of the cat to get all the honeycomb material out, then simply bolt/weld it back on. If you can't weld, you can take off the whole setup and do it, which is a definite pain in the ***. Personally I wouldn't guy a cat, I'd stick w/ hi-flow ones, but if you really want to do it, I suggest you find a muffler shop that's ok w/ welding an empty cat on. Then do the unbolt and cut it off, gut it, then drive w/ basically open headers to the muffler shop (that'll be fun
) and get them to put it back on.
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