What exhaust?

[Dr S]

I’ve got my custom manifolds sorted for the shorrock now. I was about to order a stainless link pipe to join the new lcb to the rc40.
Before I do so, am I better of with a different system? Then I can sell the rc40 with a free flow.

Looking at perhaps 80bhp off a blown 1050cc motor (70bhp na)

Like a bit of a rorty sound? Would a single box 1.75 maniflow be the device of my dreams? What about these reverse trumpet jobbies?

[Fanfaniracing]

I don't think the reverse cone exhaust will give you any advantage on a charged engine.

The cone exhaust will send the shock waves back and help the to charge the cylinder with the fresh mixture who already passed the combustion camber during the overlapping period.