Zzp ZFR bolt-on turbo upgrade
ZFR is now install and tuned, 22 psi and 25 psi on selectatune on 91.Push really hard.Take 3-4 cars on cobalt tc trifecta just in 3rd gear...Install 5 hour and tune 3 hour.Vince said aprox 380-390 hp.Video and photo in next days.







