My s-trim came w/a msd box w/the boost ret, and I already have a crane hi-6 system on my car. I don't really like msd (had some friends that ran into problems) and was wanting to use my crane, I thought all that was necessarry was an additional part (I think the timing retard control) but summit said I need the TRC and a map sensor. I haven't even started on the ignition install yet (just got done punching the whole and getting the t-rex hooked up), but does the msd come w/both a TRC and a map sensor???, and also are both required if I want to use the HI-6?? The reason why I'm asking is because they want to charge 118.00 for the TRC and another 50 for the map sensor, if thats the case, I may just use the msd that came w/the kit,
Thanks,
Thanks,
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