recently bought a magnex system for my mk2 16v from this forum (abingdon man-top bloke), the only thing that worries me is the first silencer, the cherry bomb type is rarther large, it seems to hang down below the car. i have measured the ground clearance and i only have 50mm, i've been avoiding speed bumps like you wouldn't believe................should i be worried or is 50mm clearance enough ? ? ?