Gutting/Remove Cats?

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May 21, 2009 | 03:47 AM

1996firebirdformula

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From: Seymour, Indiana

Gutting/Remove Cats?

Well i want my car louder its way too quiet even with magnaflow catback anyone removed or gutted there cats out? Any Power Lose or Gains?

We don't have emissons so its not problem.

May 21, 2009 | 09:34 AM

xx_ED_xx

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Both my cars the cats had already cleaned themselves out.

May 21, 2009 | 09:41 AM

killagt

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Quote:

Originally Posted by xx_ED_xx

Both my cars the cats had already cleaned themselves out.

what exhault do you have ?

May 21, 2009 | 10:01 AM

impaled

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just do a set of headers and an OR Y. that will wake it up for sure. my setup is pacesetter headers ORY and magnaflow and it wakes the dead. and still has a muscley tone to it.

May 21, 2009 | 10:04 AM

sweetbmxrider

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just cut the cat out and weld in a straight pipe. gutting a cat will make the exhaust rather turbulent and end up hurting you. magnaflows are quiet to begin with.

May 21, 2009 | 10:32 AM

myltwon

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gutted cats sound like doo-doo and can hurt performance

May 21, 2009 | 10:42 AM

kinglt-1

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Agreed! gutted cats disrupt exhaust flow and sound like shish!

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May 21, 2009 | 11:13 AM

xx_ED_xx

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Quote:

Originally Posted by killagt

what exhault do you have ?

Stock exhaust, cat gutted itself and a flow master

May 21, 2009 | 12:28 PM

#10

1996firebirdformula

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From: Seymour, Indiana

Found a Video of 95 Z28 with Hooker Catback and no cats. Hooker almost sounds same as magnaflow this one sounds good.

http://www.youtube.com/watch?v=F-MlfDJXagY

May 21, 2009 | 03:06 PM

#11

WhitePhoenix99

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Yeah man ditch the cats and just have some pipes welded in their place. You will throw a code unless you have it tuned out though if that bothers you. .

May 21, 2009 | 03:16 PM

#12

wrd1972

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Get some test pipes and start testing. Gutted cat is not the way to go.

May 21, 2009 | 04:10 PM

#13

1996firebirdformula

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From: Seymour, Indiana

Will it burn up the 02 sensors if the cats removed?

May 21, 2009 | 04:27 PM

#14

tspence45

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Quote:

Originally Posted by Elliott's94Z

http://www.frozenboost.com/product_i...4dc11f7f10267a

That's awesome. And a great price. I've been thinking of getting something like that, just so I don't get in big trouble if a cop checks for cats sometime.

May 21, 2009 | 11:23 PM

#15

WhitePhoenix99

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Quote:

Originally Posted by 1996firebirdformula

Will it burn up the 02 sensors if the cats removed?

You just remove the rear o2s. Only reason they are there is for the cats, so you wouldn't need them if the cats are gone.

May 21, 2009 | 11:48 PM

#16

TRANSAM GT4

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Quote:

Originally Posted by xx_ED_xx

Stock exhaust, cat gutted itself and a flow master

If you were to go LT's and off road Y it will be loud. If your going for loud then that would be a good route. I have read where no cats will decrease hp or torque(cant remember which and its not much) on a full exhaust.

May 22, 2009 | 10:42 AM

#17

kinglt-1

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Quote:

Originally Posted by TRANSAM GT4

False statement! Increasing exhaust flow by adding longtube headers/ ory will shift the power curve up in the rpm's, wich is exactly what lt1's need. Also my exhaust quieted down inside the car when I switched from bbk shorties to LT's.

May 22, 2009 | 11:04 AM

#18

96formulabird

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You could just spend some money and get headers and ory pipe or just get a cutout before the muffler and even with cats still in place it will be agressive. thats what i had welded into my magnaflow catback before i put headers and ory on. it sounded good, but it sounds even better with no cats and longtubes.

May 22, 2009 | 11:29 AM

#19

Blown427conv

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Cut the Cats off. Also if you cut the cats off and remove the rear O2's, you need to get an O2 signal simulator from Jegs/Summit or the SES light will come on.