Opinion pls. Should I hollow out my cat?

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05-02-2003, 06:13 PM

AUDIOZ A4

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Opinion pls. Should I hollow out my cat?

Going for a 2.5" cat back custom zhorst- but thinking of hollowing out the cat so it will actually be turbo back - will this make a difference?

It will look like a cat back system - but perform better I think????

Any thoughts????

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05-03-2003, 11:48 AM

Audi2ptzero

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Might be better to just put in a test pipe

and get a much larger hfc put under the car.

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05-05-2003, 07:59 PM

Phil type 951

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not worth it, replacing the stock cat can be very expensive.

talk to one eigth and he'll sell you a test pipe.

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