I really wouldn't recommend getting springs on an XI because of the reason the above poster stated. The springs will eventually break. Unfortunately with XI models, the only way to play is to pay $$$. But you get what you pay for.
Austin Yellow M4 15' (551 whp/577 lb/tq)
AWE Non-Res Exhaust | AWE CF Intake | ER Downpipes | JB4 Stage 3 | Custom SS Methanol | Swift Springs | M Perf Splitters| M Perf Lip | M Perf Spoiler | IND Reflectors | IND Grilles w/M Stripe | IND Blacked Out Badge |