Three things:

Plus 4:

1) Aero Racing ECU flash and exhaust

2) Aluminium tool tray

3) Front undertray

Roadster:

1) Mulfab steering bearings (replacing damper blades)

2) Wooden tool tray

3) Front undertray

DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4