Break Down:
Mazda6 3.0 V6 DOES use the MTX 75 transmission (atleast when it first came out) not sure about currently.
the 4 cyl uses a completly diffrent one than the ^V6, thus making the 4 Cyl incompatable with our vehicals. Diffrences to the bell housing make for a diffrent clutch.
Its similar reasons a 4 Cyl contour trans won't bolt up to the V6...slight diffrences cna make all the diffrence...and a 4 vs a 6 is very diffrent when it comes to our platform, or new cars with drivetrains from our platform.
To answer your question. I ahve a Spec stage 2 with no problems. Excellent grip, no slip, and survived a Motor swap. Excellent build qaulit in my opinion. going on 30,000 hard miles.
Lupe
