If you are putting an STI long block in your going to have some wiring and sensor items to deal with. For instance the STI heads monitor cam positions differently then the early WRX 2.0 motors because of the AVCS system.. There are ways to convert and deal with these problems but most people reuse the 2.0 heads on the STI short block.
Originally Posted by Subiejunkieak85
So I have a 03 bugeye and I want to drop a STI longblock into it. I really don't wish to get into a huge spending spree getting all the tranny back drivetrain goodies, so I was wondering if the 5spd tranny would bolt to the 2.5 block without too many outrageously priced issues? Aslo on another note is there anyone in the city of Fairbanks that is a professional accessport tuner?