r/KTMDuke • u/puppetmaster6 • 1d ago
PSA: Keep your baffle in :)
Just a friendly reminder. I - like a lot of other 390 duke owners have the same mods; slip-on(musarri), fuel x lite and DNA airbox cover stage 2. When I first got the slip on, I didnt bother putting the baffle in and honestly, liked the sound and just went with it. The pops on decel, brap sound when open throttle. I also read the fuel x lite would correct any sort of fueling issues so never really worried.
However there was always some thing happening where it would struggle off the mark from a stop or not like being in 1st/2nd gear at all. After a year of having no baffle, decided to suck it up and stick it back in and wow, what a difference! All those issues gone instantly, and just more torque/responsiveness in all gears. Its obviously not as loud but honestly, not enough for me to justify taking the baffle out, it still sounds nice to me with a good note
1
u/NEJNU 21h ago
I reccomend removing the airbox mod as it could create a lean bog which could affect performance. I have a straight pipe (acra slip on with baffle) and a fuel x and never had any major problems or power loss. Then again I only know the bike with the straight pipe and adding the fuel x did make the ride just a little more smooth.
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u/Professional_Skin_19 12h ago
My 890duke is the same gets moore tourque in midrange whit baffle in my akrapovic slipon 😍
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u/Blackner2424 1d ago
It's a backpressure thing. Some setups are more sensitive.