Difference in engine between wrx and sti

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Oct 24, 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.

Oct 24, 2007 | 08:20 PM

Scotsman

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From: Stirling

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

Probably be other things too.

Oct 24, 2007 | 08:22 PM

Anders_WR1

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From: Surrey

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

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