Originally Posted by marcel b
if I understood it correctly, there are 3 sections after the Downpipes.
Mid-pipe(s) containing the secondary cats
center muffler where 2 pipes go into 1
see the pictures of the Eisenmann exhaust here http://www.eisenmann.com.au/products/233/377/
they offer these 3 sections.
Three basic parts yes.
1). Cat(s)/Down pipe(s) N54, or one single cat/down pipe for the N55.
2). Mid-pipe(s) containing the secondary cats N54 (N55 no secondary cats).
3). Rear muffler.