As u are all aware i bought a shell to build from the ground up.

i was offered an wrx engine from a mate for £250, so i bought it, i have stripped it down and am looking to complete rebuild it.

as my car is an sti and i know that i need to put on vvt headers, i was wondering if i could use version 5 heads instead of vvt ones. and then have ecu remapped or if i would need to have a new ecu, simtek etc.

my car is a 52 plate
and the engine is out of a 53 wrx.

ta in advance
mark