Clutch choices for a AU2 220kw XR8.

[12]

Need some help/advise guys. What aftermarket clutch choices is there for a AU2 220kw XR8 5spd? A friend has such a car and recently had his gearbox rebuild and clutch replaced with a (crappy) non genuine one. Since then the car shudders on take off and he thinks it's the clutch. He does not want to take it back to them as he's not happy with them at all.

So what does everyone recommend for a replacement clutch? He does give a little stick (as per broken gearbox).. but wants the factory smoothness he had before. If anyone can give me some advise on what he should get, and if possible, part numbers and price, it'll be much appreciated.