Reviewed By Bruce W (PALMER, IA) Reviewed for a 1997 Ford F-350 —7/30/2009 3:58 PM
My 1997 F350 4X4 had plenty of power but the throttle response was sluggish. The JPM took care of that quite nicely, plus I picked up a solid 1.5 mpg. I now use 92 octane to eliminate a slight ping on 87/89. The module tripped the "check engine" light, but checks on a scanner showed the alert to be erroneous with all systems functioning properly. I recommend this upgrade.