Guys
Just want to ask a question on everyones experience with Tunes in general and Brenspeed in particular. My car is a 2011 GT with Brembos, stock Pirelli 19's running 35 psi. Mods are M5300P 1" springs, Koni Yellow adjustable struts and shocks, Steeda CAI and Brenspeed 93 Street tune.
Stock...