SCT Performance Tuners unlock your vehicles computer for more Power & Torque. Proven SCT X4 and BDX programmers hold the proper tune for your personal vehicle. Adding a custom tune is easy using our ordering form for your vehicles modifications, check out our Tune Station for more info. SCT dyno tested performance tunes are pre-loaded to adjust your vehicles parameters like rev-limit, air-fuel-ration, transmission shift points for the best overall drivability. Optional 50-State Legal tuning is here! Real time data diagnostics helps maintains proper vehicle operations. Beefcake Racing is an Authorized Dealer for SCT Performance, call 1-855-827-7223 for more info.