gutting cats?
Safety Car
Joined: Oct 2007
Posts: 3,903
Likes: 1
From: You know your drunk when you swerve to miss the tree then you realize its your air freshener! Covington Ga
If you going to gut them why not get a cat less X-Pipe? You wont get much power from it, but you will get some sound from gutting them.
Le Mans Master
Joined: May 2005
Posts: 6,366
Likes: 249
From: Fort Lauderdale, Florida
None other than a lousy, stinking exhaust and possibly 2-3 hp. If you want to mod the exhaust get headers and cats with x-pipe. Then you'll be doing something worthwhile hp and sound wise, and you'll still be leagal and not polluting your nose or the world. It is federally illegal to tamper with emissions regardless of local laws.
Melting Slicks
Joined: Apr 2009
Posts: 2,479
Likes: 36
I know from experience with other sports cars I have owned in the past, gutted cats sound absolutely horrible. Don't waste your time unless you want your car to sound like a 1982 K-car with a busted muffler. No good ever comes from gutted cats.
Banned Scam/Spammer
Joined: May 2007
Posts: 15,685
Likes: 1,330
From: Machineguns, because I don’t compromise
I got a pm out of the blue by a guy with 1 post wanting to ask me an exhaust tech question.
I gave my cell phone number and we talked....
He has a C5 and got a stock h-pipe with gutted cats for free and installed it in place of his stock catted h.
He asked me if he should have "that stinky lawn mower/propane gas smell".
He said it started immediately upon swapping the pipes.
I told him that I had a car and cut the cats in the past when I didn't care about people behind me smelling fumes and hating my ride because it was a stink bug...
He said for sure he was putting his catted h back on, because he felt no change in power, in fact the sound got raspy and "sloppier" and it wasn't worth his clothes stinking when he got out of the car.
I gave my cell phone number and we talked....
He has a C5 and got a stock h-pipe with gutted cats for free and installed it in place of his stock catted h.
He asked me if he should have "that stinky lawn mower/propane gas smell".
He said it started immediately upon swapping the pipes.
I told him that I had a car and cut the cats in the past when I didn't care about people behind me smelling fumes and hating my ride because it was a stink bug...
He said for sure he was putting his catted h back on, because he felt no change in power, in fact the sound got raspy and "sloppier" and it wasn't worth his clothes stinking when he got out of the car.
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Michael S. Palmer
Racer
Joined: Jul 2008
Posts: 293
Likes: 8
From: South Bend IN
As others have stated, leave them in or replace them. Catless is a stinky nightmare. Sure, no one cares about who's behind you, but trust me when I say the smell will make its way into the car while you are sitting at stop lights. There's just nothing appealing about the prospect at all unless you're just using it for track duty.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
You may actually LOOSE power! The hollow cat, will cause a loss of exhaust velocity and turbulence in the exhaust system. It sounds worse and yes,, the smell will get to ya.
