I hear they are faster when you remove the cat though apparently you must replace it come MOT time <img src="/forums/images/graemlins/wink.gif" alt="" />
<img src="/forums/images/graemlins/laugh.gif" alt="" /> <img src="/forums/images/graemlins/laugh.gif" alt="" /> <img src="/forums/images/graemlins/laugh.gif" alt="" /> <img src="/forums/images/graemlins/thumbsup.gif" alt="" />
