Summit is a quality run operation.
I got my leaf springs for my truck through them - shipped in a couple of days and cheaper than anyone else - including Rockauto.
I would never hesitate to buy through Summit.
I wish I had known prior to you ordering your shocks/struts, Justin at TunerSports sells Koni's for unbeatable prices and he wouldve been another option. Thats where I got mine.
Oh and you'll love those STR.Ts. They are one of the best bang for the buck suspension mods out there.
2011 Mustang GT M6 3.31s
Matt HONEYCUTT Tune, Lethal Off-Road X, GT500 axlebacks, J&M LCAs, UPR UCA, Whiteline LCA relocation brackets, Eibach Pro-Kit Springs, Koni STR.T shocks/struts, GT500 strut mounts, SR Strut Tower Brace
Best 1/4 E/T (05/18/14 MIR - no tune, X-pipe, or UCA): 12.920 @ 109.40 mph (2.059 60ft)