L2C

Anyone run this tune? If they do, r u guys getting a lot better mileage than the 87 per/tow tune? I just put it in and it seems mpg is the same as the perf tune.

Buellracer

I've answered this for someone else on the 2011+ engines forum. I ran it for a bit and wrote a decently detailed review. All together it did as advertised, if you drive it easy to moderate it won't spool up the turbos as much. I think after running it for a week or so it helped about 2mpg avg city driving (that's MAJOR amounts of stop signs and red lights in downtown Santa Barbara driving). It helped a little on the hwy too but I didn't get to really put a lot of miles on that tune on the hwy.
I do like the performance/tune better.
Btw I have a '11 SCREW 4x4 with 3.55 LS rear end. 5star 91 Econ tune, 91 perf tow, 93 performance no tow