is there any advantages of putting 959 headers on a 899? as they are 5mm bigger. also what would be needed exactly to do the change if I decided to thanks in advance
Just the headers won't fit, best to get a 1299 full exhaust and go that way. Not sure about the benefits, as they say the stock exhaust flows very well for the engine capacity. I personally have a 1299 exhaust which I'm going to de core and install. Won't be doing it for a while though.
