Ignition Coil and Iridium Spark Plugs for Subaru BRZ (2013-2014) 2.0L

High-Dielectric Ignition Coil and Iridium Spark Plug Kit for 2013-2014 Subaru BRZ

What it Does: The ignition coil and iridium spark plug kit replaces thermally degraded ignition components on the 2013-2014 Subaru BRZ to eliminate high-RPM misfires and restore combustion efficiency.

The Stock Subaru BRZ Coil Pack Thermal Saturation

Due to the horizontally opposed boxer architecture of the FA20D engine in the ZC6 chassis, the ignition coils reside in tight lateral clearance adjacent to the frame rails and exhaust manifold heat shields. Prolonged exposure to extreme engine bay radiant heat causes thermal fatigue in the factory potting resin. Over time, internal winding insulation breaks down, causing micro-arcing, secondary voltage drop, and spark blowout under load above 6,000 RPM. Worn spark plug electrodes further increase secondary circuit resistance, forcing the factory coil drivers to over-saturate and fail prematurely.

The Engineering Solution

This direct-fit overhaul kit pairs four heavy-duty pencil coils with fine-wire iridium spark plugs engineered to withstand boxer engine thermal cycles. The ignition coils feature vacuum-impregnated internal copper windings to eradicate internal air voids, paired with high-dielectric silicone boots that resist thermal arc-through. The included fine-wire iridium spark plugs lower the required ionization voltage, ensuring an instantaneous, concentrated flame kernel even under rapid throttle transitions. Designed to replace OEM references 22433AA652, SU003-04713, and UF720, this package maintains crisp ignition timing and stable dwell times across the entire powerband.

Technical Specifications

Compatibility

• 2013 Subaru BRZ Premium 2.0L H4 (FA20D / ZC6)
• 2013 Subaru BRZ Limited 2.0L H4 (FA20D / ZC6)
• 2014 Subaru BRZ Premium 2.0L H4 (FA20D / ZC6)
• 2014 Subaru BRZ Limited 2.0L H4 (FA20D / ZC6)

Frequently Asked Questions

Does this fit the ZC6 BRZ?
Yes, this is a direct fit for the 2013-2014 Subaru BRZ equipped with the FA20D engine.

Are the iridium spark plugs pre-gapped for direct installation?
Yes, the spark plugs come pre-gapped to factory specifications for the naturally aspirated 2.0L boxer engine.

The Subaru Performance Caliber

High-revving JDM platforms demand absolute spark stability to prevent the ECU from pulling ignition timing, ensuring linear throttle response and clean power pull right up to the 7,400 RPM redline.