[Cajunrider]

Dave, Welcome to KawaNOW. I have one on my '07 and it made a world of difference, all positive. Are you experiencing pinging (clattering) when rolling the throttle, stumbling when upshifting from 1st to 2nd gear, fan kicking on when idling for just a minute or two at a traffic light? These are the things I was experiencing with mine still stock. The fuel processor solved all three problems. Still a little pinging in very hot weather running 91 octane but not even close to the extent it was before. The engine was starving for fuel and the processor feeds it a little more. As far as warranty goes, the dealer wanted to install a Power Commander on mine to stop the pinging. If they can install the PC not affecting warranty, I don't see any reason why the TFI would. But, I suppose they could try anything to prevent paying for repairs they could possibly blame on a modification. I have 3 1/2 yrs left on my extended warranty and have only used it once for a leaking pinion seal. Knock on wood.