Just thought I would give you guys an update after running the Predator for the last 4-5 days on the 40hp tune. At first the shifting was very soft and the throttle response wasn't very good.

The shifting is back to just like it was when it was stock.

Throttle response is better than ever.

Absolutely no driveability issues...NONE. The engine is not any louder, no extra diesel chatter, no hesitations, no bark...nothing. Drives like its 100% stock.

The extra power is very noticeable especially if you take off pretty aggressive. It seems to get stronger every time I drive it.

I was VERY apprehensive about doing anything to my truck. I was scared of tearing something up or having to deal with driveability issues. All I can say is I am glad I did it. Now if I can just resist trying that 65hp tune!!

Go for the 65hp tune you will love it :D

Yeah go for the 65 tune, I am running it and really like it.

Update after a week with the 40 hp predator tune installed. noticed better towing power . shifting is back to normal and maybe a little better. Highway driving this week on 600 mile trip speeds no lower than 65 most of the trip cruise at 76-78 truck loaded no trailer first tank 17.8 second tank 19.7 hand calculated, this trip was in to southern mo and northern arkansas it did great in the hills. air temp started in 40,s ended in 70's . this is a great tune and should have done it a long time ago on the LLY. this is starting to run more like my brother inlaws LB7

You guys are killin me....... :p I've got to order one. Does anybody know where the best price is on one..?

John Kennedy has them, supporting vendor, lightning fast shipping. I ordered one Christmas Eve, he filled the order the same day, and I got it within days.

Other vendors have them as well, prices are all about the same.

Dennis