evo factory throttle body effective bore is 60mm, Airtrek's as far as I can measure is 52mm. Tho I maybe inaccurate with the Airtrek's coz I just measured it without dismantling throttle body. =)
Hi all, I'm currently contemplating between an FD and an S15. The car will most likely be a weekend car and I would prefer one that is easier to take care of in terms of servicing and maintenance.