I love mine. I installed the shifter and bracket in my garage with just a floor jack and jack stands also. My car would hardly go from 2nd to 3rd above 6k with the factory setup, but now it will slide right into 3rd at ANY rpm without any problem. It is a touch noisier, but the extra NVH is well worth the difference in the performance of the shifter.
2013 Black GT, 6spd, Flowmaster American Thunder axle back & resonator delete, Steeda Extreme Sport Springs, Adjustable Rear Pan Hard Bar, Barton Shifter & Two Post Bkt, American Racing 20" Torq Thrust with Nitto NT555's 255/35 & 275/35/20, Tinted Windows