High-performance Miata builds demand high-performance ignition systems. The factory Miata ignition coils simply can’t keep up once you start increasing cylinder pressure with turbocharging, supercharging, or high-compression naturally aspirated builds.
After years of building and tuning our own turbo Miatas—and working with countless customer projects—we found that the aftermarket Miata ignition solutions just weren’t cutting it. GM truck coils, Toyota coils, and other DIY swaps may work temporarily, but they bring risks like overdwell timing advance, wiring headaches, and reliability concerns. So we created the ultimate solution: the MaxSpark PNP Ignition System for Miatas.
Who Benefits from a Stronger Miata Ignition?
The short answer: everyone.
But especially those running:
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Turbo Miatas – prevent spark blowout at high boost
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Supercharged Miatas – handle elevated cylinder pressures with ease
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High-compression N/A builds – ensure consistent ignition at every RPM
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Street-driven or lightly modified Miatas – enjoy smoother idle and sharper throttle response
Even stock engines see improvements in drivability and reliability when upgrading to MaxSpark.
The IGN1A Smart Coil Advantage
At the heart of the MaxSpark PNP kit are the IGN1A Smart Coils—widely regarded as the hottest ignition coils available. These coils can deliver twice the spark energy of the best OEM coils and handle up to 19 amps of current. Unlike GM truck coils, they don’t suffer from overdwell “protection” that can unpredictably advance timing and risk engine damage.
If IGN1A coils can fire 60+ psi of boost in Pro Mod race cars on methanol, imagine what they can do for your Miata.
Plug-and-Play Installation Made Easy
Traditionally, installing IGN1A coils on a Miata required fabrication, custom wiring, and hours of work. With the MaxSpark PNP kit, we made it simple:
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No cutting or splicing – complete plug-and-play harness
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No extra parts needed – everything is included
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No fabrication required – custom coil bracket and hardware included
The kit contains:
✔ IGN1A Smart Coils
✔ CNC coil bracket + hardware
✔ PNP wiring harness
✔ High-quality spark plug wires
Just bolt it on, plug it in, and you’re ready for maximum spark.
MaxSpark PNP ignition systemSolving Voltage Drop & Reliability Issues
One major weakness in the NA/NB Miata ignition system is undersized factory wiring, which limits voltage to the coils and causes weak spark under high load. Our harness fixes this by adding a dedicated 50-amp relay-controlled ignition circuit, ensuring full power delivery and offloading stress from the factory relay.
Benefits include:
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Stronger, more consistent spark at all RPMs
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Reduced strain on the stock electrical system
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Improved reliability—no more main relay failures ruining your track day
Built for Performance and Longevity
The MaxSpark PNP system combines extreme spark energy with OEM-level reliability. These coils are designed to last for years, even under the harshest racing conditions. With proper dwell settings (we provide full configuration instructions), they’ll keep firing reliably whether you’re daily driving, road racing, or drag racing.
Note for NA Miata owners: This kit requires either an aftermarket tachometer or tach output from a standalone ECU. Most serious builds already use standalone engine management, so you’re covered.
Why Choose MaxSpark for Your Miata?
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The strongest ignition upgrade available for 1990–2005 Miatas
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Proven performance on boosted and high-compression builds
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True plug-and-play design—no fabrication, no wiring hassles
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Increased reliability with a dedicated high-current ignition circuit
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Backed by years of racing and tuning experience at DIYAutoTune
Don’t compromise your build with weak spark or risky DIY ignition swaps. Equip your Miata with the MaxSpark PNP Performance Ignition System and unlock its full potential.
Next Steps: Power + Control
Pair your MaxSpark Ignition System with our MSPNP or MSPNP Pro ECUs for complete engine control on your 1990–2005 Miata. Together, they deliver unmatched spark energy, fueling precision, and tuning flexibility.
And if you’re looking for MaxSpark Ignition Systems for other vehicles, check our catalog—we’re expanding coverage regularly.
Conclusion
Whether you’re chasing smooth idle, snappier throttle response, or big power under boost, the MaxSpark PNP Ignition System is the ultimate upgrade for your Miata. Stop fighting spark blowout and unreliable coils—open your plug gaps, turn up the boost, and do it right with MaxSpark.
