Digital Programmable 6Al-2 Universal Tune Curve Or Boost Timing Map From Pc MSD IgnitionThe Programmable 6AL 2 shares the same advanced features of the new 6AL 2 with 535 primary volts and spark energy reaching 135 mJ! Vibration mounts, wiring and a PC cable are supplied. Must use MSD Pro Data+ Software to program. The Programmable 6AL 2 lets you lock out the distributor and program a timing curve via a PC. You'll also be able to set a 2 Step Rev Limiter, a retard for use with nitrous and even a boost timing curve for forced induction