Production car racing is great for showcasing just how good or bad a car is because they are very close to stock.
You are allowed to change:
Brake rotors, calipers and pads. the RS275 brakes are awesome, so I think we will just change pads.
Springs and shocks
Exhaust after the first joint or turbo, must be standard diameter.
Engine management. Boost must not exceed standard.
Allowed to add instruments and data acquisition systems.
Allowed to fit an LSD. We wioll find out if we like the RS275 one.
Safety gear such as roll cage, harnesses, dry break fuelling.
The engines must be standard, but blueprinting is of course allowed. Ours are not yet blueprinted but should be between seasons.