Hi - Just joined the forum having just bought the car .
So , on looking at (and removing) the existing silencer I noticed that two reinforced hoses are fitted , one going from the exh manifold to the air filter box , the other going from the opposite side of the manifold “tube†to the rear quarter of the car and simply venting to atmosphere .
The air filter box has a mechanical flap (hand operated) to either allow air to enter or not .
My thought is that this hose arrangement is some firm of vacuum system , but am struggling with “why†!
Also , I see that a replacement “Sport†exhaust doesn’t have this arrangement on the silencer - so presumably it isn’t really necessary (?)
Would like to hear from anyone who could shed some light on this - have attached some pics .
Many thanks !