Got my JLT II CAI and SCT Tuner with Brenspeed Tune (87 octane) installed today and took the car for a drive. WOW, what a difference! I had a smile on my face the entire time, I think I even laughed out load a couple of times from the pure excitement!
I've had the same set up on my 05 for about a year now. Which tune did you install?87/91or93. I couldn't tell a whole lot of difference between them. But I still stay with the 93.
Glad you are liking the new found power
I never ran mine at the track using Brenspeed's 87 tune, only the 93, so I can't be sure what the difference is either, but over a year later, I continue pupming in the 93