for the effort involved, why not just get a 306 gti6 and have something that revs past 4 grand
For the cost of an FMIC? can be done for around 150 if you know what your doing, parts included. Clutch would be a far bit more around 450 i believe, As said before itll be just 5-10bhp off the GTI6 but retains the MPG and has better torque.