KTM 790 Duke - Black Widow decat + exhaust (updated description)

Cold start of the Black Widow exhaust on a 2019 KTM 790 Duke. This is with the "db killer" installed. It's VERY loud. All the db killer does is take the edge off. I didn't want to rev it much because I like my neighbors. Video does not do it justice. Nice and deep when idling, screams like a banshee when on the boil.

Drive by video here:    • KTM 790 Duke - Black Widow decat + ex...  

Exhaust link: https://www.blackwidowexhausts.co.uk/...

One thing I've noticed since the install is the engine running hotter than normal. Temp gauge stays at 4 bars (saw it hit 5 one time while stopped at a traffic light in when it was already 98F outside). I can feel the heat just rolling off the motor when sitting and idling. I believe this to be because the air/fuel ratio is even leaner now than stock, which was already too lean for this bike.

Decided that a Booster Plug will fix this. I don't want to get into an ATOM or PCV, modifying/removing o2 sensors, any of that. All I want to do is richen up the A/F a little bit and that's all the booster plug does (by 6%). I've got a thread over on 790dukeforum.com if anyone wants to follow along: https://www.790dukeforum.com/threads/...

Booster Plug link: https://www.boosterplug.com/shop/ktm-...
Booster Plug FAQ: https://www.boosterplug.com/shop/cms-...


I am not affiliated with Black Widow or Booster Plug.



 Cheers