I find it a big difference between the old rev2 and rev2.5 which is the same as rev3
Big difference in low down torque, the car just takes off screaming the rear tyres and i noticed changing from 1st to 2nd auto box the car farts between gears, never used to.
And also very very smooth.
Well worth the $495 compared to rev2a and 2b.
Plus you can run the latest maps.
THE BEAST MHD Flash Tune / AFE DCI Intake /M3 suspension/Forge Intercooler/Alpina B3 AT Flash/Bird's B3 Suspension/BMW OEM M3 Steering Wheel and DCT Paddles/LUX V4 Angel Eyes/CIC Retrofitted