I had one and it was very consistent! Until it was stolen at the dealership!!! If you use it according to the instructions and set the conditions correctly it gives good results. I would like to get another one.

warmonger

Former owner of '99 CSVT - Silver #222/2760 356/334 wHP/TQ at 10psi on pump gas! See My Mods '05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red '06 Mazda5 Touring, 5spd,MTX, Black