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Supertech

Supertech Subaru EZ30D H6 (w/Variable Intake Lift) Inconel Exhaust Valve - Single

$56.88 $45.52 Save $11.36

SKU: S00P SEVI-1043D

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Description

The Supertech SEVI-1043D is an Inconel exhaust valve designed for the Subaru EZ30 H6 engine. It features a 30.5mm head diameter and a 5.45mm stem diameter, with a total length of 105.25mm. This one-piece forged valve is made from Inconel-Nimonic alloy and includes a single groove.

This valve offers a significant reduction in valve head temperatures, which is beneficial for modern turbocharged engines. The cooler valve improves material strength and durability, providing tuners with more flexibility and a wider range of spark timing advances. It also features an undercut stem and a "Superfinish" valve stem for reduced friction.

Fitment

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Specifications

BrandSupertech
Part NumberS00P SEVI-1043D

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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