DIYAutoTune - Turbo Accessories HomeMadeTurbo fans, check out the products for homemade engine management tunes at! is the largest seller of the MegaSquirt engine management system. Our newest model is the MSPNP Gen 2 plug and play engine management setup, where we have versions that plug into over 20 different cars (with more being added on a regular basis) that plug right in where your stock ECU goes, and let you tune in real time with a laptop.

Now shipping: the MS3Pro Ultimate!

Old 01-17-2017, 12:31 PM
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Join Date: Feb 2012
Posts: 391
Default Now shipping: the MS3Pro Ultimate!

Order the MS3 Pro Ultimate here

The MS3Pro Ultimate is a new ECU that pushes the MS3Pro design as far as it will go, with more inputs and outputs and the features customers with big horsepower engines have demanded. Here's a short list of what we added to the hardware:

- Peak and hold drivers (software selectable 4/1 or 8/2)
- 5 more analog inputs
- Onboard 4 bar MAP and barometric pressure sensor connectors
- 2 more VR conditioners - for Coyote cam sensors, vehicle speed sensors, and more
- 7 more switched inputs
- 4 more on/off or PWM outputs
- Status indicator lights

And there's a new firmware upgrade out to support the MS3Pro Ultimate which you can also load to any current MS3Pro. The new firmware brings several new features:

- CO2 dome pressure boost control
- Four wheel traction control
- More records in SD card data logs

This new version of the MS3Pro sells for $1499 with an 8' flying lead harness. For those who don't need all the extra I/O, we still have the entry leave MS3Pro available too.
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