Saved my truck!
I have a '08 F150 4.6L and I had just bought a 27' RV and it was putting a huge strain on my truck in the hills and mountains of Tennessee. I purchased CTS2 along with volant cold air intake before a vacation to Florida and WHAT A DIFFERENCE!!! The tune for towing saved my truck from killing itself to pull the RV. Rpms never went above 3800 even up the steep hills...if your towing anything this chip makes a world of difference I would recommend for sure along with autoAnything...great service!
Rated 4 stars only because I had some trouble tuning my vehicle and called Diablo twice first time was on hold for 50 min and second time someone answered after 55 min and told me everyone had went home for the day they took my name and number and said someone would be getting into contact with me the next day they never did so good luck if you have any trouble I figured it out myself .