MX-5 NA · NB · 1989–2005
Begin your journey
here.
Out with the old, outdated electronics — in with a fresh MS3 by MS Labs standalone in your beloved NA/NB. True wideband air/fuel, MAF delete, and yes — it runs the legendary R8 coils. Installed and dyno-tuned under our roof.
The problem
The old electronics are holding it back.
A 20-to-35-year-old factory ECU was never built for what you want now — and the sensors around it are just as tired.
Aging factory ECU
Locked maps, no headroom, and decades of heat cycles on the original board.
Narrowband guesswork
The stock O2 only knows "rich or lean" — never your real air/fuel ratio.
A restrictive MAF
The factory air-flow meter chokes the intake and limits where you can go.
Tired ignition
Worn coil packs and leads mean a weak, inconsistent spark.
No data
You can't see what the engine is doing — so you can't tune it safely.
Dead ends
Want ITBs, a turbo or E85 later? The factory brain says no.
The fix
A fresh brain: MS3 by MS Labs.
A modern, plug-in standalone built for the Miata. Everything the factory ECU never gave you — and the room to keep going.
True wideband AFR
Closed-loop fuelling off a real wideband sensor. We see — and hold — your exact air/fuel ratio.
MAF delete
Speed-density control. The restrictive air-flow meter comes out; the intake breathes freely.
R8 coil-on-plug
Ditch the tired coil packs. Audi R8 COP coils give a strong, modern, reliable spark — fired by the MS3.
Sequential fuel & spark
Each cylinder fuelled and fired on its own. Smoother idle, cleaner running, stronger pulls.
Full datalogging
Every run recorded. We tune on real data — never on a generic base file.
Built to grow
Launch control, boost control and flex-fuel are already in the box — ready for ITBs, a turbo or E85.
Completely plug & play
The Mini MS3 board fits inside your factory ECU case and plugs into the factory connector — every NA/NB generation. Clean, hidden and fully reversible: your stock board comes out and stays with you.
Dialed-in daily
Proper cold starts and a rock-steady idle. It drives like the factory should have.
What it can do
Why here
Installed and tuned under one roof.
We fit the MS Labs MS3, wire in the R8 coils, set up the wideband and develop your map cell by cell on our in-house dyno. No posting your ECU away, no off-the-shelf base map — a calibration built for your exact engine.
The package
What you get.
Completely plug-and-play across every generation — NA 1.6/1.8 and NB 1.6/1.8. R8 coil-on-plug ignition is available as an optional upgrade. Final quote depends on engine condition and any extras (ITBs, cams, fuelling).
How it goes
We talk about your car
Tell us your NA/NB, its engine and your goal. We tell you honestly what makes sense.
Install
MS Labs MS3 fitted, R8 coils and wideband wired in, MAF deleted — clean and reversible.
Dyno tune
We develop your map cell by cell on our in-house dyno, watching AFR and knock the whole way.
Datalog & handover
Verified pull, full datalog, cold-start and idle sorted, keys back in your hand.
Questions
MX-5 NA · NB
Ready for a fresh brain?
Send us your NA/NB and your goal — we confirm the build and give you a quote. Athens workshop.