Poncam Camshafts | TA301A-SB02A

Quick Specs:

• Duration: 254° (Intake) / 254° (Exhaust)

• Lift: 10.20mm (Intake & Exhaust)

• Drop-in fitment – no valve spring upgrade required

• Designed for Single AVCS EJ255/257 engines

• Preset valve timing for simplified install

• Works with stock and aftermarket ECUs

• Compatible with OEM variable valve timing

• Precision-ground from high-strength materials

Product Description:

Unlock hidden performance from your EJ-series engine with Tomei Poncam Camshafts, tailored for Single AVCS Subaru applications. Built for the EJ255 and EJ257, these cams are designed to improve overall engine breathing and efficiency without compromising idle quality or drivability.

Featuring a 254° duration and 10.20mm lift on both intake and exhaust, these camshafts offer a balanced performance upgrade — ideal for spirited street driving or track days. Tomei’s engineering ensures maximum airflow and reduced friction loss, delivering faster spool, improved throttle response, and better acceleration throughout the rev range.

Unlike traditional cam upgrades, Tomei Poncams require no upgraded valve springs, no valve timing adjustments, and are fully compatible with OEM and aftermarket ECUs — making them a true plug-and-play performance enhancement.

Key Benefits:

• Boosts power across the entire RPM range

• Improves throttle response and engine acceleration

• Maintains smooth idle and streetable characteristics

• OEM-level durability with no additional valvetrain mods

• Perfect for mildly built or daily-driven EJ setups

What’s in the Box:

• 1x Full Set of Poncam Camshafts (Intake + Exhaust, Left + Right)

• Installation manual

• Tomei documentation

Fitment:

• 2006–2014 Subaru WRX (EJ255, Single AVCS)

• 2004–2007 Subaru STI (EJ257, Single AVCS)

• 2005–2009 Subaru Legacy GT (EJ255, Single AVCS)

• 2004–2013 Subaru Forester XT (EJ255, Single AVCS)

Warranty:

Covered under Tomei’s manufacturer warranty for defects in materials or workmanship.

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