Yes I felt a difference on the track and also on the street. Brake pedal feel is firmer especially during hard braking. It's such a simple functional mod and easy to install.
I just got my car tuned with the TMS Flex Fuel kit. I live in North Jersey and there's a Valero in Emerson NJ that sells E85. Im tuned for E40. Used my E85 calculator and E analyzer and its on point. So anyone in North Jersey looking for E85 here's another location.
161 Kinderkamack Rd
Emerson NJ