$349.99
MS3Pro ULTIMATE Complete 8′ Flying Lead Harness Only (White-Black-Gray connectors with 8′ pigtails) arrives with color-coded, printed wires per the pinout below.
All applications.
Enhance your Buick 84-87 Grand National/GNX with the MS3Pro Plug & Play ECU – a fully standalone, plug-and-play engine management solution designed for easy installation and maximum performance. This ECU is the ultimate choice for serious racers see...
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Enhance your 96-97 Mazda 'NA8' Miata with the MS3Pro Plug & Play ECU – a fully standalone, plug-and-play engine management solution designed for easy installation and maximum performance. This ECU is the ultimate choice for serious racers seeking ...
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When you're not in your fire suit, the track can be a chilly place in the evening! Stay warm this winter with our ultra soft MS3Pro Logo Hoodies - just right when the temperature drops! Don't be dumb, stay warm and add a hoodie to your cart today!
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Making your own harness? This plug and pin kit features the MS3Pro AMPSEAL white & gray connectors plus 75 pins- more than enough for making your own MS3Pro EVO or 1st Gen harness. MS3Pro ULTIMATE 3-connector AMPSEAL Kit available here
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If you have a previously installed MS3Pro harness (1st Gen flying lead or LS Drop On Harness) and want to upgrade to MS3Pro EVO or ULTIMATE ECU, the upgrade path is simple. However, complete functionality will require a few basic changes to your 1st Ge...
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Note: This product has been expertly modified from our original 58X harness with only slight adjustments to meet 24X specifications For MS3Pro ULTIMATE/ EVO plug and play installation on GM LS engines with a 24x crank trigger. The MS3-Pro 24...
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