A_Senna Hi Guys, Would a Vectra GSi 2.5 MSD Rearbox go on my car, and would it be better than the Letterbox one I got on it now as its just the same shape as a standard rearbox. dunno.. Would I be benifiting powerwise? not a lot I know. 😃 cheers.. Pete
JohnnyN Yes it will fit no problems. I used to have one. No particualr gains. Just looks better and sounds a bit better.