. I’ve had both bikes, actually I’ve owned probably the whole range of Ktm’s at 9 of the twins.:grin: 2004 950ADV S,2006 950SM, 2007 990SD, 2010 990R Adv, 2012 990 SMT, 2016 1190 Adv S, 2016 1290 GT,QUESTION: I know they are a decade apart and so technology wise very different - but has anybody had the 990 and a 790?.
Just academic interest.
Question? Should you remap or do you have to remap after you de-cat. I just put the new scorpion serket on and I love the way it runs and sounds but I would like it a little louder was thinking about the decat...ing but didn't want to do any harm to the engine. Thanks in advance for replies.i fitted a booster plug to help richen the mixture a bit and also a K&N air filter and it does make a difference, i also last week removed the cat and put a cheap cat delete pipe on from china £35 lol and oh boy does it sound good now ! not too loud but it crackles and pops something wicked now, i have ordered a twin can LeoVince exhaust system but currently out of stock so the cat delete has made my mouth water waiting for the LeoVince system .
Sweet let us know how you make out time for me to start looking for a dyno in my area!There has been a lot a dyno checks on the 790 with stock system,cat delete,slip ons,full systems,K&N filters ect ect so everything basicly, and what they all say is the euro strangled 790 runs a bit lean/weak due to the euro emissions on the bike, by fitting the Booster Plug that i fitted this richens up the mixture by 7% and you can smell the difference from the pipe straight away, im not saying this will sort out the lean/weak mixture perfectly but it certainly runs better along with the K&N, all the data i have seen from various dyno runs with the 790 in various exhaust configurations they all seem to come up with the same figures and that is below 4000rpm the engine runs slightly lean ! which we all knew anyways ! and they say that there is no configuration of exhaust mods done that would damage the engine in any way shape or form ! saying that they all reccomend the same thing and that is once you have your various mods fitted get it on a deno and get it remapped to suit YOUR bike, im just waiting to get my LeoVince system fitted then it will be going on the dyno and get remapped.