09-03-2019, 02:59 PM
Handbooks are not my favourite source of historical evidence (quite a bit of artistic licence in them!), however the set up on page 22 here: http://archive.a7ca.org/wp-content/uploads/PL_353I.pdf gives you an idea of the standard factory set up. The ones linked to above are very close to this in design and the longer tailpipe you mention came in with the LWB chassis (I think).