Originally Posted by Rick
RS-adam
The S1 box is 4.x - i'm sure someone will confirm, it;s similar to the Xr3i
It does sound a lot like you have the S1 final drive. S2 is 3.82
with my old gearbox I hit the limiter in 4th @ 125mph... and now its at a little under 120mph..
but I'll find out when I contact CTS with that number from my gearbox..
thank you all for the replies... I really helped me a lot
