Cats or NO Cats?????
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Joined: Nov 2007
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From: Tyler ,Tx
Cats or NO Cats????? Getting some different feedback from outside sources that taking my cats off will help my car then others say leave them on it will get better gas mileage and wont be able to tell the difference in power gains. I know alot of you dont have them because yall are running long tubes, cant really afford that right now, being laid off kinda put a damper on plans but just considering some cheap mods for right now.
I just finished up my intake/heads/cam/headers swap on my car and I went MAC longtubes without cats, same as you to save money. I honestly wish I had money for cats because the car smells when it's in the garage (i know i need a tune also) but mostly the raspy sound at low to mid- rpm range is something i'm fairly sure is caused by the lack of cats, not just the headers. If the smell or sound doesn't bug you, then get some used headers dude.
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Unless you're running a max effort, not remotely streetable, full on race engine (which your .sig does not indicate) removing the cats will increase emissions, decrease power, and violate federal law. 700+ HP street legal engines are becoming more and more common. So why would you remove the cat?
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Unless you're running a max effort, not remotely streetable, full on race engine (which your .sig does not indicate) removing the cats will increase emissions, increase power, and violate federal law. 700+ HP street legal engines are becoming more and more common. So why would you remove the cat?
FWIW, keep the cats. I have QTP LTs with offroad y-pipe and there is quite a bit of rasp. Plus it draws a lot of attention when you go WOT, and any deputy within a mile or 2 radius will hear that sumbitch.
Last edited by 03Sssnake; Apr 14, 2009 at 08:35 AM.
I honestly wish I had money for cats because the car smells when it's in the garage (i know i need a tune also) but mostly the raspy sound at low to mid- rpm range is something i'm fairly sure is caused by the lack of cats, not just the headers. If the smell or sound doesn't bug you, then get some used headers dude.
I say cut the cat, sounds a hell of a lot better. Not much in power gains, but you can get the true sound from the car. My first mod was CATS! and I have never looked back. People say you get rasp, yeah but if so change the muffler. Mine has no rasp, deep and throaty.