Cutting off cats

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Feb 21, 2008 | 04:00 PM

BrianGT72396

Thread Starter

Joined: May 2007

Posts: 17

From:

Cutting off cats

Im getting long tube headers put on my car, i want to just straight up cut out the converters, there is no point in them being there...Someone told me it would give me more power when i do that cause it will free up the exhaust...can i cut them off what are some problems in doing that...thank you for all the help..

Feb 21, 2008 | 04:22 PM

bhaz413

1st Gear Member

Joined: Dec 2007

Posts: 141

RE: Cutting off cats

Quote:

ORIGINAL: BrianGT72396

Im getting long tube headers put on my car, i want to just straight up cut out the converters, there is no point in them being there...Someone told me it would give me more power when i do that cause it will free up the exhaust...can i cut them off what are some problems in doing that...thank you for all the help..

Its illegal to cut off the cats. You wont pass emissions and if you get pulled over and they check, open your wallet here comes a fine. Its not cheap either and it ruins the enviroment.

Feb 21, 2008 | 04:25 PM

acascianelli

5th Gear Member

Joined: Jul 2006

Posts: 4,409

From: Sterling Heights, MI

RE: Cutting off cats

If you're going to spend the money on LT headers, you should be able to spend a little more to get a proper midpipe. It'll be louder, you'll get a little more power, and you'll need a tune.

If you don't have emissions testing in your state, go for it.

Feb 21, 2008 | 04:32 PM

06VistaBlueGT

3rd Gear Member

Joined: Nov 2006

Posts: 671

From:

RE: Cutting off cats

I'm confused. Are you going to cut your cats off to put them in after the long tubes are in? Your cats won't be there anymore after the long tubes are installed. If you don't want cats after the longtubes are installed, just buy an offroad midpipe for your longtubes.

Feb 21, 2008 | 05:46 PM

Rubrignitz

5th Gear Member

Joined: Jul 2007

Posts: 4,897

From: TX

RE: Cutting off cats

Yeah do some more research. The stock cats/pipe is a complete "downpipe" from the log manifolds on your car. When going with LT's you'll need a "mid-pipe" mating your longtubes to a cat-back setup. Completely different. Give one of the mustangforum vendors a call and talk about what your plans are.