I was asking Peter G about this in his workshop.

.

By rights I think you are not supposed to vent to atmosphere, which is why the charcoal canister is there? Like petrol stations now have to send the fumes back in the tankers rather than using the big pipes and chuff it out in the air.

But the charcoal canister is not a requirement for M.O.T so who is ever going to know.

.

.

I`ve just left mine in.

Any performance benefits? Very slight weight saving I doubt it weighs much?