420A 420a standalone

[Gunnark]

I’m currently looking for a standalone system for my turbo 420a and can’t seem to find one everyone says MegaSquirt but I can’t find the one for my car

 

[BLACK'98DSM]

Use the MS3. It's not a "direct fit" per say so you'll have to basically remake your wiring harness to use it as a standalone. Make sure you order the tuning cable as well because oddly enough it's not included with the ECU.

https://www.diyautotune.com/shop/megasquirt-assembled/megasquirt-3-megasquirt-assembled/