.Our guides are made in the UK for us and only us. They are made from Colsibro (regd) and to our design. Colsibro is a copper, nickel, silicon alloy and is widely regarded as the best material for valve guides.

Inlets come with oil seals which combined with the profile at the top greatly reduces oil consumption giving cleaner combustion and improved plug performance.

Slightly longer than stock exhaust guides give better heat transference

You can of course probably buy cheaper.

We don't think you can buy better.