Difference in engine between wrx and sti

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24 October 2007, 08:17 PM

pinchers

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Difference in engine between wrx and sti

I have a blobeye wrx with ppp and am looking to know the differences in the engine compared to the sti's engine that gives the sti the extra power.

thanx for any info.

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24 October 2007, 08:20 PM

Scotsman

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500cc injectors
Sports cat downpipe
Uprated TMIC
Decat up-pipe
VF35 turbo

Probably be other things too.

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24 October 2007, 08:22 PM

Anders_WR1

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STI's have variable intake valve timing and stronger internals that allow higher boost to be run.

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