Are the tail pipes different from 13B to 20B? Did they all have the active silencer system? :Thumbs-up
The 13B has single outlet, 20B double outlets.
20B has active silencer, not sure about 13b.
Thanks :yes I take it the singles are oval?
Yep, thats right.
My original exhaust.
(http://i17.photobucket.com/albums/b51/kevnokia/Cosmo4.jpg)