Joined: Feb 2006
Location: Southern Alberta
Just put on 87 oct tune from Brenspeed, what a difference in response and power. I was getting 22-24 mpg, highway when stock with my automatic 06 GT before. Now highway trips are showing just under 27 mpg. The 87 tune even chirps rear wheels on shift from 2nd to 3rd. Haven't tried it fully yet. Can't be happier! Later I'll try the 89 and 91 octane tunes on the Xcal2.
06 Tunstang C & L CAI SCT Xcal 2, MRT Plenum Cover
Saleen VI Stage 3 Brenspeed 530 hp, Comp Cams VSR 127300, 410 gears, Trufiber 3" Cowl Hood