Reply To: vitpilen 401 exhaust


I work for a dealer southern california and we tested bunch of diferent pipes and they dont make more power only noise. I have done testing on my 2017 duke390 and my 401 for the past 7 months and cutting out the db killer only makes it stupid loud. The best and most safe and reliable set up is the competion werks mid pip with the coober ecu and leave the db kill in or you will kill bottom end power Its all plug and play. Your bike will run much cooler smoother and pic up some power.