BMW NineT Forum banner

DB Killers on the Arrow exhaust - WTF?

21K views 20 replies 8 participants last post by  Dolemite  
#1 ·
Bizarrely, there are no instructions online or included with the Arrow Prorace slip-on for the R Nine T Scrambler. Nowhere, nothing.

Image


Does anyone know how to install this DB killer? It looks like it should just 'squeeze' into the muffler but that doesn't seem like it'll really stay put forever. How do you usually do this? I can't find anything online on how to install this.
 
Discussion starter · #11 ·
No circlip or space for it to be found. I think indeed the link pipe is supposed to 'press in' the db killer, but that makes alignment internally nearly impossible and it doesn't sound like it does that much. I think that solves this... thanks Scooter Paul.

Anyone have ideas on how to make it a bit quieter? Haha.
 
Discussion starter · #14 ·
Have a look at the spare parts list for your specific exhaust at Arrow's Web site. The exploded diagram seems to indicate that there is no DB killer available, assuming I guessed correctly at the one you have.

https://www.arrow.it/en/assembled/1492/BMW-R-Nine-T-Scrambler-2016

https://admin.arrow.it/img/craft/do...ocs/1492/5426fe3c-237d-42ad-aafe-f5eedd27be59_BMW_R_Nine_T_Scrambler_'16-18.pdf
Infuriatingly, not on the diagram, but is in the PDF you linked. Part 10: "Silenziatore Interno / Db Killer".

I'll send Arrow a message, but it's super annoying that they just don't have it in the diagram!

This Arrow CBR1000RR has the same type of db killer in the diagram, seems like the link pipe / start of muffler fitment is right:
Image
 
Discussion starter · #17 ·
Wow, that DB killer looks a lot better. And yep, that's how I have it now. Kind of a wonky way to 'fit' it but very removable, I guess! It looks like the same company makes both, because the material and build is identical.