I live out in the woods, and while there are some good dyno shops around they seem to focus on domestics or Subarus.
How can I determine which would be best to tune my car? Are there some red flags to look out for or questions I can ask that would help me judge?

I did all the street tuning myself so if they're not familiar with Megasquirt or Tunerstudio do you think it's safe to still work with them?

If anybody has recommendations, I'm just outside Portland Maine.

 

Hey skidude,
Granite State Dyno in New Hampshire does a variety of makes. They tune with Megasquirt and Tunerstudio. I know because they tuned my Miata in 2018.
I had a factory MSM turbo, an AEM 340 gph fuel pump, an AEM X-Series Inline Wideband UEGO AFR O2 Sensor Controller, a GESiŽ UHO-Series Metal Core Catalytic Converter, Fuel Injector Clinic Injector 525cc injectors, a MegaSquirtPNP Pro MSM, 13 pound flywheel. I can give you more specifics if you like.

 

Baxley's Speedshop is in Windham. I know Charlie he's a good dude. I've also heard good things about Granite State Dyno. Matt Miner is further in Rhode Island could also probably help you out. It does seem tough though because it seems like most people are only tuning Subarus.

 

Anyone have experience with Portland Performance? Granite State Dyno is closer for me, but I have a coworker who speaks very highly of Portland Performance.