Punching Cats - 1999 Mustang GT - Ford Mustang Forum
 
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post #1 of 7 (permalink) Old 03-11-2010 Thread Starter
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Punching Cats - 1999 Mustang GT

I dont have the money to buy a new x or h pipe right now, but my school does have a shop with lifts, torches, and mig welders. I wanted to punch 4 of my Catalytic converters do give it a meaner sound, i currently have just straight pipes from the cats back, would it hurt the car or make it run worse if i were to punch the 4 on the H-pipe out? Im not worried about nspection cuz its not due until august.


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post #2 of 7 (permalink) Old 03-11-2010
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Punching cats...
...will get you in trouble with the SPCA for sure!


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post #3 of 7 (permalink) Old 03-11-2010
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How do you plan on passing emissions after you eliminate the cats?
 
post #4 of 7 (permalink) Old 03-11-2010 Thread Starter
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How do you plan on passing emissions after you eliminate the cats?

ill have a new x or h pipe by the time i need to get it inspected so im not worried

2003 GT, 5-Speed, Flowmasters Original 40s, Pypes Off Road X-Pipe, Full Racing suspension, lowered 1 1/2, Cobra Rims, K&N Cool Air intake
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post #5 of 7 (permalink) Old 03-11-2010
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Quote:
Originally Posted by Gary Paul View Post
...will get you in trouble with the SPCA for sure!
I knew this thread had your name all over it!

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post #6 of 7 (permalink) Old 03-11-2010
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Horrible idea. I've seen a couple that were just punched out, and they always have a hollow, tinny, echo kind of sound. Don't know how to explain the sound.

Just be patient until you can buy what you want. I know it's hard, but once you get done taking the passenger's side off to hollow them out, you will understand why you only want to do it once.........

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post #7 of 7 (permalink) Old 03-11-2010
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bullit is very smart, 5 min on the passanger side you will want to quit. if anything why dont you just cut the cats out? you can get good money for um. maybe sell those and help buy ur new h or x

cams, and all basic bolt ons, arizen seats, cowl hood, and now my buckets got a hole in it (meaning im broke) but when i fix it ill have gears and some trany work
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