Ignition Coil and Iridium Spark Plugs for Subaru Forester (2014-2015) 2.0L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2014-2015 Subaru Forester

What it Does: Delivers high-dielectric spark energy and precise combustion timing to resolve direct-injection misfires and restore throttle response across the rev range.

The Stock Forester Ignition Breakdown

The boxer engine configuration places the coil-on-plug assemblies in close proximity to the exhaust manifolds and cylinder heads, subjecting them to extreme thermal cycling. Over time, OEM coil boots degrade, causing dielectric breakdown, micro-arcing, and intermittent cylinder misfires under boost. Compounding this, standard spark plugs suffer from premature electrode erosion due to direct-injection cylinder pressures, leading to widened gaps, delayed flame kernel propagation, rough idling, and hesitation under load.

The Engineering Solution

This direct-fit overhaul kit features four high-output ignition coils engineered with reinforced copper primary and secondary windings encased in high-grade epoxy resin to resist heat soak and internal shorting. Paired with four fine-wire iridium spark plugs, the assembly provides high thermal resistance and focused spark discharge at lower required ignition voltages. Factory-matched blade terminals and OEM-spec electrical connectors ensure seamless integration with the factory harness without ECU tuning or triggering diagnostic trouble codes.

Technical Specifications

Compatibility

• 2014 Subaru Forester 2.0XT Premium 2.0L H4 Turbo
• 2014 Subaru Forester 2.0XT Touring 2.0L H4 Turbo
• 2015 Subaru Forester 2.0XT Premium 2.0L H4 Turbo
• 2015 Subaru Forester 2.0XT Touring 2.0L H4 Turbo

The Subaru Performance Standard

Engineered to handle the rapid cylinder pressure spikes of turbocharged boxer engines, this ignition kit maintains consistent arc stability under peak boost for reliable all-weather capability and smooth power delivery.