If you've spent any time pushing your Z32 300ZX hard, you've probably run into the limits of the factory ignition system. The stock coil-on-plug setup was adequate for a bone-stock VG30DETT, but the moment you start adding boost or chasing higher RPMs, coil fade becomes a real issue — and replacement OEM coils are only getting harder to find.
The R35 GTR coil conversion has become the go-to solution for serious Z32 builders. Here's everything you need to know about how it works, what's involved, and why it's one of the best reliability upgrades you can make.
Why the R35 GTR Coils?
The Nissan R35 GT-R's ignition coils are one of the strongest OEM coils ever fitted to a production car. They produce significantly more spark energy than the Z32's factory units, they're widely available new, and they're surprisingly compact. Most importantly, they respond extremely well to higher boost and modified fuel maps — exactly what Z32 builds demand.
Key advantages:
- Higher spark energy than OEM Z32 coils
- Readily available from Nissan dealers and aftermarket suppliers
- Excellent reliability even under sustained high-load driving
- Compatible with most standalone and piggyback ECU setups
What the Conversion Involves
The Polar Engineering Ignition Coil Conversion Kit provides precision-machined mounting hardware and wiring provisions to integrate R35 GTR coils cleanly into the Z32 engine bay.
A clean, engineered solution built specifically for the Z32 platform.
Who Is This For?
This conversion is particularly well suited for:
- Builders running 450+ whp and experiencing ignition misfire under boost
- Track or time-attack Z32s where reliability is non-negotiable
- Anyone whose factory coils are tired and looking for a future-proof replacement
- Builds running E85 or high-ethanol fuel, which demands stronger spark
Ready to Convert?
The Polar Engineering Z32 R35 GTR Ignition Coil Conversion Kit is in stock and ships worldwide.
ORDER HERE