^ ^ Agree above....great system.
But if you have $$ burning a hole in your wallet and you don't want to hack up your car and put additional guages, etc, you can use the Procede CAN integration for your progressive meth controller and fail safe. It uses your inside blinkers lights to detect flow so you don't have to take your eyes off the road.
Daily: 2013 e92 M3 MW FR DCT ZCP / ESS VT2 650 S/C, MRF mid/Akra slip, ST BBK
Track/Airstrip: 2011 997.2 Turbo S PDK / 501 AWHP & 536 AWTQ Bone stock on a Mustang dyno
Beater: 2013 X5 3.5sport