I have a 2011 GT500 non-SVTPP, and I didn't like the large gap in the wheel wells so I lowered it with a Ford Racing Handling Kit (springs and shocks) which lowered it all around about 1.25in. I also installed 20x10 and 20x9 Black Mamba wheels (Super Snake replicas) with Michelin PSS 275/35/20...
I ran into a snag trying to remove the OEM shifter. When removing the 2 OEM shifter arms, it was very difficult to flip the pin clip up to unlock but I was able to get the passenger side off. However, a different story on the driver side...after finally unlocking the tab, the pin clip would not...