I was not able to test this on MSD81. My car has MSD80. I suspect it should work just fine. Try it and report back here.
Equal Opportunity Harasser!
6MT | COBB | AR | AE | Forge DV | HPF | P3 Gauge | Hybrid Intake | O.S.Giken TCD | All M3 bits | TCKLine | StopTech | UUC | ER | SPEC