I got the Range Disabler for the V6 4.3 engine and can tell a big difference on the way the truck drives, so far so good. The RPM are back to normal. No more shaking at around 50 MPH that would get sometimes when in 4 cylinder mode and the RPM's all over the place when driving around town in 4 cylinder mode. Not sure how much MPG will lose on the truck but well worth it IMO, if I need to save on MPG just unplug the device. Read somewhere that if you leave your trucking sitting for more than a week need to unplug as it drains a little from the battery. Purchase the Range device from Autoanything.com for around 140 dollars but the price it is up to 160 bucks with the 20 percent off promo code from there website which seems like a good deal if anyone is looking to buy.
