It’s not directly impacting the exhaust , but it does affect the engine so it may change the way the engine runs / bike sounds.One question, is it possible that deleting the sas can also change the sound of the exhaust? I currently like the sound of my agostini, I took out the catalyst from the H pipe. I would like to block the sas, but the guzzi tech store does not deliver to my country. Can I just block sas reed valve on the cylinder heads?
Not a mechanic OR engineer