Average Reviews:
(More customer reviews)Bought this for my '03 Dodge 2500 4x4 diesel pickup. This was one of the cheaper units that both chipped the computer and would let me adjust speedo for taller tires. So far it appears that between the marginally taller tires and lowest setting that I am about 3 mpg better and with a noticible seat of the pants power increase. I haven't done a long road trip yet so will confirm at that time. Only minor complaint is the settings that adjust for tire size appear to be inaccurate. I run with a gps and know my speed against gps has always been dead on. When I went with taller tires I took note and also after added hypertech and adjusting for tire size. using the product manual's approach I was approx 3% off on both speed and odometer. I played with settings until they agreed within 0.5% with multiple gps readings. but the eventual settings were not even close to the settings using the hypertech recommended approach.
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