Drivetrain enhancements:

Engine is now a M50 2.5 litre 24valve twin cam (non-VANOS).
The head has been ported and compression ratio increased.
Stainless steel headers modified to suit the E30, restricted by very limited space around the steering knuckle due to the right hand drive
E30 flywheel lightened to 13lb, compared with the standard E36 at 25lbs
E36 gearbox with E36 M3 gear shift
Modified E30 tailshaft with large guibo
3.25 ratio LSD, suitable for the 1:1 5th gear
Exhaust is twin 50mm leading to a V8 cat as the x pipe back to twin hot dogs and finally a 2x.2.5inch stainless steel muffler at the rear.
635 radiator

Other enhancements:

Eibach springs
Koni adjustable shocks
Selby 22mm front sway bar with 16mm rear bar,
KMAC adjustable strut mounts
NOLATHANE rear subframe bushes and diff mount
7.5x16 CSA wheels with 205x50x16 tyres for road
7x15 TSW wheels with 205x60x15 for competition
Recaro SRD drivers seat