General reason for de-catting was to get rid of the weight. There's minimal weight loss by de-catting the headers as most is in the can. Tech boys could prob give you some figures re with or without headers. The valve in the headers is quite clever, For noise testing it shuts down about 4.5-6 rpm enabling a low db rating, great for race pipes
I was just interested as although I'm no engineer, it looks a reasonably easy job to cut the down pipes, remove the cats and re-weld them leaving the exhaust valves in place. See this is one on ebay.
This is something I'm thinking of doing at the moment. I'd be very interested to see if anyone else has managed to do this? - My aim would be to get as near to a factory weld appearance as possible so the modification would be undetected.
I spoke to Tamara at Racefit; they can gut the existing cat to allow a full free-flow exhaust. they need the bike in to do it to get the alignment perfect. Not sure on price but would expect a couple of hundred.
I spoke to Tamara at Racefit; they can gut the existing cat to allow a full free-flow exhaust. they need the bike in to do it to get the alignment perfect. Not sure on price but would expect a couple of hundred.