id just reccomend getting v5-v6 sti heads.

Dremel existing heads and flow test, freshen up with new parts as required.

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No more GC8, sad face.
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I was under the impression that v5-6 sti heads were the same as wrx's of the same era. The only better flowing heads are the spec C heads, but if you were to port/high flow standard heads, you'd have better that Spec C's.

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Signarape!

99/00 Oz and JDM WRX/STI heads were identical high flowing big port designs.

All JDM heads have been big port ones even since...
The Spec C variants are always slightly ported straight from STI.

The Oz WRX/STI heads went to small port designs for the 01+ WRX and 02+ STi and stayed that way i believe up till 05.

Great porting is a technical artform, and great gains are to be had with matching cams.
The only person I would recommend is a guy on Rexnet, the name escapes me at the moment....

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"You can turn your back on a person, but, never turn your back on a drug. Especially when it's waving a razor-sharp hunting knife in your eye." - Raoul Duke

yes. porting heads is more than just dremeling the heads so they flow the same and have more capacity.

I have always been under the impression that the v3 sti (jdm) are the best heads/cams to get out of all the classics........


ie the lairiest cams done in a sti....

yeah they did.

is that for a new or recon one ???

Brand spanking new from subaru, good value but thats only the short block, ie no heads.

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Long live the Classic!
MY99 - 245hp & 360Nm.......Best ET - 12.771s

[QUOTE=WRXTASY]The Spec C variants are always slightly ported straight from STI.

I'm sorry this is wrong.
If they were ported from the factory then they would not still have a cast finish.

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