robmog88, opportune post. I have just ordered 4 vredestein sprint classics (175/70/R15 86H) for my 4/4. Will post what they are like once delivered & fitted.
I'll be very interested to see how you get on changing from the standard 165/80R15 to the 175/70R15.
I think you will have to tweak your speedo calibration and it should give the effect of raising the final drive ratio for better acceleration.
Difference should be about 7 or 8%
