I have got to wondering if I upgrade my Haltech Platinum GM Sport to an R3 with a new 355 I am building. Has anyone on here gone to the R3? The GM Sport is a great plug and play puter, but doesn't have the features of the R3 and I want to update the stock Commo wiring too, as it's getting old. Another option would be a Elite 2500, however they seem to be being phased out. I can get good coin for my GM Sport.
So, has anyone done it with a Holden 304/355/383? I have questions. :-)
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