Has anyone tried a Replicast seat unit ?
 

I am looking for either a damaged carbon or standard exhaust cover to try something out, anyone have one ?

Or has anyone tried a Replicast or similar race seat unit with the exhaust cover built in ?

I wanted to know if they can be modified to accept the original seat instead of a race foam seat pad.

The reason being that i am fitting a WSB style exhaust and need an open ended cover for it and want to try various options before i buy something.