Hi people, Just joined up today hopeing someone could help me brilliant forum by the way... I'm looking at getting an exhaust made or fitted to my 318ci sport convertible 2004 as I hate the sound of the standard exhaust! Only problem I have is its a 4 cylinder and I dont know what I can do to it to make it sound more shall we say ''beefy'' air filter etc: Has anyone got any ideas? be much appriciated.Thanks Shane