I had one of them. Superchipped and fitted with a full Hayward and Scott exahust from turbo back, no cats. Went like stink

Don't cane it in 5th gear. I did and broke 5th dumping the throttle on the motorway at 80mph ! After i got the box repaired i replaced the turbo to system pipe removing the cat and the restrictor plate This made it much smoother and stopped the huge rush of power that bust the gearbox in the first place.

Enjoy... i miss mine for the fun but not for the fuel bills !!!