1. S

    Original 4.7 QP exhaust vs only X-pipe changed.

    I don't want the exhaust to be too loud. I was thinking of changing the X-pipe only. I think I am going for the Larini X-pipe. I was wondering how much louder the X-pipe is going to make. If I am not wrong, the original pipe have a muffler in it. Can anyone give me a figure of how loud...
  2. N

    X pipe for Quattroporte wanted?

    Need some more noise :) Has anyone got one for sale at all please? Second hand preferred to keep the cost down! Please pm me Many thanks! Nick