Just think it takes away from the Shelby look . I think the GT350 has a classic look with the factory wheel, but just my opinion. The car looks great in the first pic.
I have the PP2 and the Steeda clutch spring on 2016 GT and have no issues. The clutch spring is a nice upgrade, you will forget it's there after a while.
I installed PP2 myself and got a nice bump in torque and overall power. The very early tunes might have had some issues but I think they were...