How to Remove a Welded Exhaust DB KILLER | BMW R NineT

DB Killers may serve a purpose, but NOT IN THIS HOUSE! So today, I show you how to remove a welded-in dB Killer from a Motorcycle Exhaust. This improves flow and sound. My two favorite things.

This video is short and sweet. In my BMW R Nine T introduction video I explained that the OEM Akrapovic exhaust was far too quiet. A simple fix is removing the welded dB killers from the pipe or simply swap the exhaust. Since I like the looks of the pipe, I just wanted to see if this would improve the sound.

Drilling through stainless steel isn't what I would call a good time. You need STRONG bits and patience. The carbide drill bits weren't doing the job, so I picked up some blue spider bits that worked much better. The key is to step up from a small to larger size for a cleaner job and be patient. I tapped a starting point with a hammer and screw and began drilling. Spot welds are tricky because they may be bigger than you think. The 1/4 bit did the job.

Regardless of the motorcycle, I do recommend a slide hammer for pulling a db killer. While they are expensive, picking up a cheap one in a dent pulling kit was the way to go. So hopefully this video is helpful in giving your bike more sound and more fun!

Things I used in this video:

Thanks for watching!

- ALLDAYANTHONY

[lindaparker]

Anthony, Did this mod. A right angle attachment helped get good clearance to drill. German "sex bolts" can be used to keep exhaust from ruining outer cap. Short 1/4 chrome sex bolts can be drilled 1/16" to allow cotter key attachment point. Chrome heads visible inside pipe. Save baffles as future laws change. Reverse mod use aluminum pop rivets. Floppy valve delete completes mod, improves sound big time.

[drdrew]

I did this mod and also removed the flapper valve. Pretty much impossible without a slide hammer. Bike sounds a million times better. Stock Akropovic is pretty but sounded like wet farts. Really embarrassing. Now it roars! Whistle only exists at a narrow range of drill hole diameters — just increase opening by 1mm increments until it disappears. Holes are mostly hidden anyway and only another R9t owner is gonna notice anyway. My bike has no tachometer but now exhaust note gives great feedback to how the engine is revving- I feel like it’s a whole new bike. Highly recommended mod!

[aaronmorgan]

Love the bike content. I just bought a 1994 honda xl250r as my first bike. Just got my motorcycle permit.

[NOAHCASAS]

SURE SOUNDS ALOT BETTER WITH THE DELETE THE SILENCER OFF THE MUFFLER I'D SAY IT WORTH THE QUICK EAZY MOD CHILL VIDEO THANKS ANTHONY ✌🏼OUT

[juanmaldonado]

WAW. TNKS. A. SUPER. AWESOME. VIDEO. NOW. TO. MY BIKE. TO. DO THE. SAME. BLESSED BE. SIR. AND. TNKS

[jakubolszewski]

Great video! Looking forward to more r9t content 👍

[davidellis]

This is a good mod but owners beware the newer model 2021onwards has a much longer baffle that is very difficult to removal, Have drilled out the spot wields but cannot remove the baffles. I need a bearer removal tool but unfortunately they don't hire this tool and I am not purchasing one just for this job.

[Liftingwithyash]

Awesome video man. Keep it up!
Road to 100k

[matthewschlesinger]

Great video... thank you. I started drilling holes in my 2020 scrambler last night, wasn’t sure how big Of hole I needed to go. Would love to hear if you figure out a way to eliminate whistle, that’s the only hesitation I have with baffle removal

[kinetickutz]

I don’t get how that breaks free a welded on tailpipe. My muffler tips are welded 360* around. Thought you would show how to take off a tip like that. Now I’m sad. 😢

[matth]

Competition with the Civic vlogs?! Lol great content man i always love your uploads even when it's not a Civic vlog 😎🤙🏽

[xTHEYCALLMExGx]

Thinking of doing the same for my 400. I picked the bike up with upgrades already installed by the dealer. So the biggest one is that they installed an Akrapovic carbon slip on. The biggest problem I have tho....I don't want to drill into the carbon XD.

[ShoesPhoto]

Flapper Delete, plus a Catless set of headers, it'll be loud, deep and loud, just the way it should be. I have the Ackra Catless Headers, Flapper Delete, and the GeG Stainless Muffler and it's loud as hell. I get complaints from ADV riders all the time off-road.

[joelvillalobos]

Another great video, man!! 👍🏽 What GoPro/camera mount do you use for the POV that we see? Is it chest or head mounted? Thanks !!

[iantestro]

The new mirrors look good which ones did you buy. Many thanks Ian

[jean-alexandrest-pierre]

Question: Couldn't you have sawn off the weld and then sanded them down instead of drilling?

[kowalski]

why does it whistle a bit when the revs come down? sounds weird

[vilikaren]

Is there a chance to anyhow put it back in in case of selling the bike?

[SlowYourRoll]

What tires are you running? I purchased a 22 with gold rims and off road tires but it delivered with black spoke and road tires. In reality I’ll be 80/20 but yours look closer to a 40/60 if that’s a thing.

[pedromessias]

Where can i buy the tool you use to remove the DB Killers? Thks