RCM Billet Aluminium High Temp Half Moon Seal Options:x4 RCM Billet Aluminium Half Moon Seals this allows for expansion under

this allows for expansion under temperature changes so as not to place unwanted stress on welds and removing the need for un-reliable flexi joints

Increased and unrestricted airflow

or sprint events

RCM640 or RCM641

RCM Billet Aluminium High Temp Half Moon Seal Options:x4 RCM Billet Aluminium Half Moon Seals this allows for expansion underThe RCM Billet Half Moon seals (also known as cylinder head plugs) have been specifically designed to replace the problematic OE plastic seals which become hardened and brittle with the constant temperature changes, eventually leaking and requiring replacement again. Manufactured from high grade aluminium, these RCM engraved replacements will not suffer from these issues. Fitting precisely into place and sealed with our SGA35 liquid gasket, this