Possible aternative gearboxes for Citroen CX Gti Turbo

[pgibbinson]

Hi All,
Don't want to open a can of worms etc but just browsing to find if anyone else has got any experiences with swapping out the standard CX GTI Turbo box ? Already thinking of dropping in a DTR Turbo II box to stretch out the revs. Are there any other 6 speed boxes that have been used with the M25 block ? Citroen Relay vans appear to have a 6 speed but am presuming the ratios would all be much lower.

All comments very much appreciated