rev2/rev3 na whats the difference?

[anthonyg]

can someone please tell me the differences between rev2 and rev 3 n/a's?
ami right in thinking that rev 2's are 158bhp and rev 3's are 173bhp in standard form?
what actually gives this difference in power?

[fearless]

yep your right inlet manifold is different for a start obvious straight away when looking at both, thay also have different down pipes and manifolds i think and also air filter system is different im sure someone will give better explanation

[mk2too]

interesting information, been wondering the differences between the two models power increase wise, are the manifolds/ downpipes bolt on, i assume they are?

Obviously the fuel system is probably altered but im sure bolting the later spec manifolds on would slightly increase the power?

[steve b]

Differences are through out the engine I believe, head, cams, CR etc Its a much more eager reving engine at the top of the range. Got a TechTom ECU on my rev3 n/a and it flies round to 8100rpm happily