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NC Miata with 2.5L base tune

Posted: February 15th, 2026, 3:41 pm
by MiataJon
Hey Guys,

I recently bought a 2.5L 2006 NC Miata (otherwise bone stock) and went with Fab9's tune package with versatuner. I feel like the base tune file I got makes my car run slower and Bryan at Fab9 is impossible to get ahold of so I thought I'd tinker around with Versatuner.

My pretune AFR looked rich and now my Fab9 tune looks lean. It's basically running at around 14.7 all the time, even at WOT.

Anyone have a base 2.5L Miata tune I can use to start my tuning journey?

Jon

Re: NC Miata with 2.5L base tune

Posted: February 17th, 2026, 1:58 am
by CrazyCanadian
Can you post your tune.

Re: NC Miata with 2.5L base tune

Posted: February 17th, 2026, 1:16 pm
by MiataJon
I only have the Fab9 tune, so I can't edit it. Basically starting from scratch

Re: NC Miata with 2.5L base tune

Posted: February 19th, 2026, 2:03 am
by CrazyCanadian
If you are starting from scratch that means you have your stock tune from the ECU to work from. Can you post it.