1olbull only has the later 2 pipe systems from his ABS Roadsters.
Are you looking for stock 3 pipe system or the 3 pipe Triumph Off road use Only (TORs) identical but straight through exhausts that are much louder. rare now but they still turn up in good condition on eBay and forums etc..
The cats are in the crossover box and pipe on the early 3 pipe Rockets and are quite restrictive so some just replace that with a free flowing crosspipe. Triumph accessory ones sold out 10 years ago or more but plenty of new versions made still by aftermarket here in Australia, UK, NZ , Poland and maybe elsewhere.
e.g 3 pipe straight through Stainless aftermarket with spaghetti crossover from Staintune Australia are now very rare.
Next decision is do you want performance headers like our forum member's:
Aussie made
LMS (
@ozrider ) ;
NZ made
Viking (
@Paul Bryant ) ;
Another Aussie now closed but many still circulating
CES;
Aussie
Reband from South Australia (still going), that Mr. lush from that States's Victor Harbour has tuned with, and commented on
USA made
Carpenter have two header versions too, a 'snake' and an aggressive straight version.
USA made now closed
Jardine BIG Boss dual pipe with headers
If you want aftermarket performance ones there are many older 3, 2 or 1 pipe options sold new or used but again appearing in good or re-furbished condition here on the forums or eBay. I have sold quite a few systems over the years and can provide options to seek if that is what your after.
Unfortunately the awesome set of 2004-2009 Std/Classic (pre-ABS only), re-furbished Jardine Big Boss in new black ceramic coating in my shed have been welded on one side and will no longer ship International due to length limits.
.