94 import WRX
10 February 2006, 05:06 PM
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94 import WRX
Hey guys could some one please tell me wt sections there are in the exhaust system of a import WRX MY94 from the turbo back?
I assume when changing exhaust components it is still best to iliminate back pressure fro the turbo exit first, Hence the downpipe (cat) first.
I assume when changing exhaust components it is still best to iliminate back pressure fro the turbo exit first, Hence the downpipe (cat) first.
10 February 2006, 05:43 PM
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From turbo, downpipe (cat) then centre section (cat) and finally backbox.
The biggest gain is made by removing the cat in the downpipe, it allows
the turbo to spool up quicker and easier and also allows the engine to
rev more freely.
Rob
The biggest gain is made by removing the cat in the downpipe, it allows
the turbo to spool up quicker and easier and also allows the engine to
rev more freely.
Rob
10 February 2006, 06:25 PM
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Originally Posted by apples24
i thought classics had no centre cat? or is it only sti's?
Rob
10 February 2006, 06:58 PM
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Originally Posted by scoobfan
I'm sure early WRX's have them 
Rob
Rob
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10 February 2006, 07:07 PM
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I have had two jdm's clasic WRX's both MY94.
On both of mine there was no centre CAT on the contrary, there was not even a "centre section" After the CAT downpipe, or as mine is now open neck 3" de-cat downpipe, my Apexi system goes straight out of the back, 2 parts only (incl dowpipe)
On both of mine there was no centre CAT on the contrary, there was not even a "centre section" After the CAT downpipe, or as mine is now open neck 3" de-cat downpipe, my Apexi system goes straight out of the back, 2 parts only (incl dowpipe)
10 February 2006, 07:55 PM
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Originally Posted by bigmacandfries
so if i needed to fit a center cat on a classic sti what car would i get one from? or is it a matter of cutting out and welding any old cat in?
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