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2.5 uppipe

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Old May 6, 2015 | 02:27 PM
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Default 2.5 uppipe

Is there a cat in the uppipe on the hawkeye sti 2.5? Cheers.
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Old May 6, 2015 | 03:17 PM
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Originally Posted by madey
Is there a cat in the uppipe on the hawkeye sti 2.5? Cheers.

I think there is, albeit a small one. I've heard removing the uppipe unleashes masses of power. Probably need a map to suit though.


I wouldn't have a clue on what uppipe to replace it with.....but many here will!
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Old May 6, 2015 | 03:21 PM
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nope - no cats in the STI uppipe. You get a power bump with a fancy schmancy harvey type uppipe but the standard one is good enough for most needs.
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Old May 6, 2015 | 08:36 PM
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Only the 2.0 Newage WRX had an uppipe cat.
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Old May 6, 2015 | 09:55 PM
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Correct , standard UK hawkeye,s have no cat in the uppipe !
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Old May 8, 2015 | 09:02 AM
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as above RWX 2.0 new-age from 01-05 have the "pre-cat" no other model has ever been fitted with them

a nice Harvey Smith "trick" up-pipe always helps regardless
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Old May 8, 2015 | 09:51 AM
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OK, thanks for all the replies. I'll look at the Harvey uppipe.
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Old May 8, 2015 | 12:40 PM
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Just to pinch the thread a minute..

I assume the hawkeye has a cat in the downpipe?? Can you get a sports cat for it?

Do not want to Decat it thanks.
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Old May 8, 2015 | 01:36 PM
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yeah hawk has a cat in the downpipe and yes you can get a sports cat for them
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Old May 9, 2015 | 08:16 AM
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new-age cars have a 2pce d/pipe with primary & secondary cats.........
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