Originally Posted By Osama
I just received a reply from the factory through my dealer about stage 2, and stage 3 performance upgrades.

Stage 2:
stage 1 + Cam's, Throttle body, Ecu. Adds +30 hp more. £2500

Stage 3:
Stage2 + CNC over ported heads , Cam's, Throttle body, Rockers, Ecu. +50 hp. £9,795.


This is BS, you need to talk to Chris at S&S to get the correct info. Stage ll will get you around 10HP and 21 torque. Also the 58mm throttle body that Morgan charges you for and is supplied in their Stage ll kit is worthless, as the ECU that comes with Morgan's kit is programmed for the stock 52mm unit and is locked, so you can't tune for the larger 58mm throttle body if you wanted to.

Last edited by Timothy; 11/10/16 11:33 AM.
1998 +8
SS Sport tuned exhaust

2013 M3W
Stage ll motor kit
Cats removed