Gutted Cats?

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Oct 17, 2004 | 07:57 PM

PhantomOnyxZ

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From: Hemingway, South Carolina

Gutted Cats?

Has anyone ever gutted the cats before on a ls1 engine? Was thinkin about it, but I didnt know how loud it would be or if it's a smart decision to make?.I know it will throw some codes. I have SLP Loudmouth on car now.

Oct 17, 2004 | 08:13 PM

NightKidWS6

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From: MS

Most people will say to leave the cats intact on a car with a loudmouth exhaust, but if you are not getting longtubes anytime soon, then definitely go for it. I am running a loudmouth on stock manifolds, and I absoultely love it. Also, when you are at a lower speed, and you get on it a bit, if you open your window it will sound like the road is cracking a bit. It's a good bit louder, so just be prepared, but overall I think you will be pleased on stock manifolds.

Oct 18, 2004 | 06:33 PM

PhantomOnyxZ

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From: Hemingway, South Carolina

are they bolted together or do you have to cut them to open them up? havent really looked at them,any tips?

Oct 18, 2004 | 07:45 PM

jimmyblue

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From: East Central Florida

https://ls1tech.com/forums/showthrea...ht=gutted+cats

https://ls1tech.com/forums/showthrea...ht=gutted+cats

plenty of other threads about "gutted cats" in the
archives but these are probably the freshest / most
useful.

Oct 18, 2004 | 08:58 PM

ls1fbod

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From: Temecula,CA

I dont like the sound of gutted cats, it's way raspy and when u equip an exhaust it ruins the true sound of what u coulda had...

I had a bad expierience with gutting the cats on my friends car, there was little or no performance gain and it sounded shitty!!!

Oct 18, 2004 | 09:49 PM

1BADFNZ

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From: Charleston SC

I had mine gutted and it sounded like ***!!! I swithced to ORY asap!!

Oct 18, 2004 | 11:20 PM

4.6gt-2-ls1ta

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From: Beaumont, TX

as someone with the loudmouth and gutted cats it is definitely louder w/gutted cats but not near the obnoxious point. I do however hear a lot of noise in the cats area with it running, so the chambers do act as echo chambers. My only reason for gutting them was that I had 2 sets of cats go bad in less than 3000 miles so instead of dealing w/dealership more I chose to gut them.