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CPU – MegaSquirt-II Daughterboard

4.60 out of 5 based on 5 customer ratings
(5 customer reviews )


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SKU: MS2-DB Categories: , Brand:


MegaSquirt-II Daughterboard

For upgrading your Megasquirt-I ECU, or replacement of your damaged MegaSquirt-II daughterboard.  MS2 daughter cards are for use only with genuine Bowling & Grippo MegaSquirt mainboard PCBs. This is the latest version of the MegaSquirt-II daughterboard with the C64 processor and is CAN-enabled. The latest embedded code can be found at the MS2/Extra downloads page.

Customers' review

Rated 4.60 out of 5 stars
5 reviews
4 stars 0 0 %
2 stars 0 0 %
1 star 0 0 %

5 reviews for CPU – MegaSquirt-II Daughterboard

  1. 5 out of 5

    Great upgradeFollow the manual and add a few jumpers, press the daughter board in place and off you go. Super easy. Stepper IAC control worth the upgrade alone!

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  2. 5 out of 5

    Upgrade to MS2 after 14 years on MS1 Extra....If you've still got MS1 Extra, but want a little bit more out of your MegaSquirt, get yourself the MS2 Daughter Card. Very easy to install and a huge improvement in resolution, options and so much more. I've got a V2.2 board that has its own limitations, but I'm still extremely happy with the improvements. All the support you need is in the online manuals and if you get stuck, the friendly folk on the forums are only too happy to help. The only real question is, 'what are you waiting for?'

    Was this review helpful to you? 1 of 1 people found this review helpful

  3. 5 out of 5

    Went from MS1 chip with some issues with electronic noise issues and resets to the MS2 board which fixed all my issues. Way better! Thank you Matt.

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  4. 3 out of 5

    Watch the pins on this guy. During assembly process I removed the chip board per the asm manual and broke two pins. Not real happy about it - very expensive mistake. I have removed other eproms for rechipped engine and trans ECUs and this is the first time one has broken on me. When seated it is very well secured but if you have to remove it be very very careful. When if finally broke loose the last two pins broke at the opposite end I was prying on. Fortunately the pins did not break off in the eprom reciever. It could be worse but again, not real happy about this.

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  5. 5 out of 5

    This is an AMAZING processor! If you have a megasquirt 1 like I do, this board is a must for tuning and resolution!

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What firmware is on this daughter card?

  • This processor ships without full firmware. It has the bootloader installed so you can easily load any MS2 code to it.

Can I order this pre-loaded with firmware?

  • We do not offer it with firmware as it is much easier to load firmware once this card is installed in a MegaSquirt ECU. Once you have it installed, you can easily load firmware using a laptop.

Questions & Answers

  1. 0 votes

    You can install it as an upgrade, although the MS2 / V2.2 combination is not as well documented or up to date as the MS2 / V3.0 or MS2 / V3.57. See the MS2/Extra archive web manuals for notes about this combination.

  2. 0 votes

    The MSPNP Gen 2 is based on the MicroSquirt Module and does not use an MS2 daughterboard.

  3. 0 votes

    The daughter board is assembled and ready to drop onto a MegaSquirt main board. It ships without firmware but can be loaded with Bowling & Grippo code or MS2/Extra. Loading code can be done with an ordinary serial cable and a laptop, no special tools required, and takes about five minutes.