MS3 has no PNP harness, you'd have to wire it up yourself.
Other than that, the MS3 is far superior to the MS2. It has sequential injection (best the MS2 can do is batch fire), the ability to run coil on plug ignition, can support as many as 8 wideband O2 sensors for individual cylinder tuning, has an on-board SD card for data logging (you have to have your lap top plugged in to datalog with the MS2) and can be tuned using a USB cable as opposed to the MS2's antiquated serial cable. It also has (if you build it with the MS3X expansion board) 4 switchable inputs for launch control, table switching, data logging and NO2 control.
I'm in the process of purchasing the kits needed from DIYAutoTune to build one for my Ford 331ci Monster Miata. Right now I'm running a stock A9L which can not handle the extra 25 cubes. I see the process of building, installing and learning to tune the MS3 as an alternative to paying a shop to burn me a chip for the a9l. The total costs involved are not that far off from each other.
Check out DIYAutotune's site if you have not already. There's a lot of info there about the different systems.
how fast are guys going on ms2 and 3 now? I use pms cause I've used it for a long time and i love it but i'm interested in the ms stuff. fastest car i know of with pms is running
7.87 @ 172 and the car is still mass air.
I wasn't questioning how "good" ms is i was asking for feedback which I haven't found enough of. I realize it's not apples to apples anyways what with pms being piggyback and ms being completely standalone. I have no bias either way man cause I have what I know how to use I was gonna see if ms would be an easy transition for me cause I would like to go distributorless, which pms cannot do.
You will see more and more of it in the years coming.
People tend to stick to their roots when it comes to tuning systems which is why the most popular are usually the ones that have been around the longest.
Since MS has been around.. it will only just get more and more popular once people realize its not as scary as they think.
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