Supertech Sodium Filled Inconel Exhaust Valves +1mm Subaru EJ20 / EJ25 Turbo WRX / WRX STI

Supertech Sodium Filled Inconel Exhaust Valves +1mm - Subaru EJ20 / EJ25 Turbo - WRX / WRX STI

Supertech sodium-filled Inconel exhaust valves for the turbocharged EJ20 and EJ25 DOHC engines in the Subaru WRX and WRX STI, Forester GT / XT and Liberty GT. The hollow stem is part-filled with sodium, which melts at running temperature and carries heat from the valve head up into the stem and guide, so the head runs cooler under sustained boost and high rpm. The head is +1.0mm oversize (33.00 mm), for heads with oversize or recut valve seats.

Options: set of 8 (SEVI-1014-HS-8) or single (SEVI-1014-HS). Most builds need the set; the single valve is for replacing one.

Note: Oversize valves need the valve seats machined to suit. Not for the 2015-on WRX (VA), which has the FA20 engine. Installation by a professional engine builder is recommended.

Features

• Inconel-Nimonic exhaust valve, sodium filled
• Head diameter 33.00 mm (+1.0)
• Stem diameter 5.95 mm
• Overall length 104.7 mm (standard)
• Single-groove keeper
• Sold as a set of 8 (every exhaust valve in the engine) or as a single valve

Pairs Well With

• Supertech Manganese Bronze Exhaust Valve Guides - Subaru EJ20 / EJ25 Turbo - WRX / WRX STI
• Supertech Viton Exhaust Valve Stem Seals - Subaru EJ20 Turbo / EJ25 - WRX / WRX STI / Forester / Liberty
• Supertech Dual Valve Spring Kit 82 lb - Subaru EJ20 / EJ25 Turbo - WRX / WRX STI
• ARP 2000 Head Stud Kit - Subaru EJ20 / EJ25 DOHC - WRX / STI (GC / GD / GE / GH / GR / GV / VA) / Forester (SF / SG / SH) / Liberty GT (BE / BH / BL / BP)

Shop more: Supertech

Need help choosing parts? Contact our team at sales@chicaneaustralia.com.au.