Designed and manufactured in the UK, we use the highest quality stainless steel sheet with extremely low flatness tolerance for high-temperature and high-pressure reliability.

We hand-polish our decompression plates to remove any manufacturing marks which could cause premature failure.

Each decompression gasket set is hand-finished with a high-quality OE-manufacturer gasket - we can modify the gasket to fit larger head studs/bolts if required (standard size is 10mm, we can modify for either 11mm or 12mm).

Unlike other online vendors who don't understand how to seal the gasket long-term, you will receive two outer faces of gasket and a centre plate. Using two full head gaskets with a spacer causes inconsistent sealing around the combustion chambers.

We also have multiple thicknesses available for different required compression ratios. Please use a compression ratio calculator to decide what thickness to use - 1.0mm, 1.3mm, 1.5mm, 1.8mm, 2.3mm and 2.8mm. Returns will only be accepted if the part arrives back without damages.

We are specialists in M5x forced induction conversions - if you need more parts for your build, you'll need not go further than to us.

Please note - If you don't leave a note at checkout with your required thickness, you will receive a 1.8mm thick gasket.