I bought the RS500 replicated one from GGR for £130.

I have a 4X4 head so needed the Spec-R bracket to fit the damper.

Was almost impossible to find but eventually got sorted by someone on here

Bailey one is only a ''hanger'' so doesn't dampen any vibration and allows the exhaust manifold studs to crack easily, which is what happened mine!!!

Apparently Cosworth designed this damper especially for the RS500 to dampen vibrations.

Everyone says it's the best.

Fitting mine next weekend hopefully.

Philip.