you guys have been the best even though you dont offer exact fit for my express van with your help and a little exrta work we got all to fit encluding 4 inch exhuast and what a hp increase ....cant say enough about the ECM upgrade and the FDS heat sync... ...read more From: Ryan S.
A very warm and Hearty THANK YOU!!! I have purchased the FSD over 2 yrs. ago (it did the trick) and I believe the OPS has gone out and I am in a bind- I live in a Northern remote area in No. Calif. and your next day Air got here in an unheard of record.... ...read more From: Douglas H.