ive had loads of 21 turbos and sold loads of boxes to peeps that are doin the same stuff u lot are up to , the most comon buyer of the un1 box is the gt40 replica mob but be warned the un1 box is maxed out at 300/320lb torque an will be happy to spilll its guts . the main prob is second gear shaft is to long and bends under stress . if i was u get on the gt40 replica sites ask them remember one lad saying the engine mounts and convertion plates were around 3/400 pounds and theres a bloke thatll build your box to take 500lb for around 4k in coventry good luck


jay

oh if u want a cheap box normally about 150.00 try 21turbo.com also there is a one piece input shaft svailable for around 1100.00