It is thrilling for me to get this thing in and tested. It is all I ever wanted (except for a Supercharger) to help with towing my 10,000 lb camper. It manages the Engine and Tranny great!

The 87 Octane mode has improved overall performance, as well as improving gas mileage. Not by leaps-and-bounds but 1 1/2 mpg or better.

Performance mode is really sweet too. It didn't greatly improve anything up to 40 mph except the shifting. From 40 to 60 or so it did get faster and shift much better. From 70 and beyond 100 it was like a rocket. I found myself looking down at the speedometer and seeing it past 90 a lot.

So thrilled with getting this!

 

Glad your happy with it. Once the lead wears out, how about a fuel mileage comparison?

 

Where did you get the tuner from?

 

Well I don't know if I'm supposed to say, but it is a 4WD magazine/parts store. I will say that you could get it from any car performance order place too. The prices are fixed by Superchips.