Radium Fuel Rail Plumbing Kit - Honda S2000 AP1 99-04 TS04041033 Industry leading SUS347 stainless steel

Industry leading SUS347 stainless steel investment cast exhaust manifold

The radiator cap is an essential part of an upgraded cooling system and will help to safely maximize engine performance by controlling the coolant boiling point

Kelford Cams recommend valve spring KVS22

So why make one work with the other and be restricted with the tiny original donut gasket/ with OEM dimensions

Through the use of advanced computational fluid dynamics (CFD) simulations

Radium Fuel Rail Plumbing Kit - Honda S2000 AP1 99-04 TS04041033 Industry leading SUS347 stainless steelThe plumbing kit includes the items in the image above to install the Radium 20 0591 02 fuel rail (not included) on to a 99 05 S2000 with the OEM fuel configuration.