Version 3 STi Engine Into Version 4?

are they not the same engine ? like ive no mechanical experience the lads will be of help


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Turbo and heads are different... loads of info online and some links on our site to that.

Block would be similar.

So if using block and changing over own heads and turbo wouldn't need a remap... otherwise yes possible, but with different heads and turbo from your original setup it would need to be mapped and may be some small rewiring needed.

Best to talk to the likes of Ciaran ASD or Dave at RSR about this.
 
V3 and V4 are same fittment yes. No difference in head inlet bolt pattern. Or wiring. Its v5 on that would have that problem

Fit without issue.


If want to post up pics make sure you have Version numbers correct though to confirm.
 
Thanks for the replies/help,just weighing up my options at the minute.


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