i`m thinking of going the same way mate. bought a 6 sp getrag box not knowing about clutch and flywheel issues!! :doh: that`ll be up for sale on egay soon.
bc gearboxes dont like how i drive i think? got through 3 so far. had present box fettled slightly with uprated bearings. see how it goes but cant see it lasting once i get the power up. whats the life of the mtx like. mileage wise?