my own experience with GT500 Shocks & Struts (2010 parts) with Steeda Sport springs is that the car is too light for those dampers. I have a Pony Package V6 and it was fun to drive on the track, but the stiff dampers made the whole suspension rattle on less than perfect roads. I would expect about the same with SR springs. I am now running Kony Yellows on all four corners with Steeda Sport in the front and Route 66 55D rear springs and it is a lot more comfortable with a more controlled and sporty ride than stock.
My GT500 shocks and struts are for sale btw, but only locally
Canadian 2012 V6, MT, Perf.White Pony Package (3.31 gears). Koni Sport Shocks & Struts. Steeda Sport Springs w/HD Mounts, Route 66 SpeedShop 55D rear spring kit. Boss 302 Strut Tower Brace. BMR Adj PHB. BFG G-Force Sport Comp2. Pioneer TS-D6802R Front SPeakers, Clarion 80W/Ch Amp. JL Audio 8 Inch Sub And 175W Amp. GT500 Steering Wheel. 2012+ Tilting Headrests