ahh another 32 brother!! welcome!! the springs from the srt-6 are in appearance identical to the slk32 springs. i have had both side by side and the only thing i can find different is the slk32 are badged eibach and have a m/b part # no markings at all on the srt-6 springs. doubt they are different. everything else in the suspension is identical minus the rear axles to diff mounts.
the resonater sits right behind you on the drivers side. its only function is to quiet the car down. on my 32 the res was removed and the secondary cats also removed and a x pipe installed. the slightest of drone at 2000 rpm and a wonderful sound at full throttle. do it!!