Back to stock slipons
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Novice
Joined: Oct 2020
Posts: 18
Likes: 4
From: Plano, TX
Back to stock slipons
I recently installed Cobra Neighbor Haters on my '20 107 Heritage and a PV FuelMoto tune. The bike runs good but the slip ons are loud. I contacted Cobra and it seems that without cats in the pipes this would be the norm and there's nothing they can do. I used an analog sound meter to measure sound levels. While sitting on the seat with the meter arms length on the muffler side, I recorded 104db at warm idle and 116db with some throttle. Three feet from the rear of the bike I measured 90db at idle. Go figured, that's what I was hearing on Youtube most of the time. Oh well, live, spend and learn.
Last edited by websocket; Dec 1, 2023 at 09:39 PM. Reason: spelling
Cruiser
Joined: Nov 2017
Posts: 112
Likes: 62
From: blue ridge mountains
Same exact experience. Too loud and sounded like sh!$. That's coming from someone who plays in a rock band 20+ years. Sweet spot for me was s&s with cats. Tried american custom also - much better than stock but too quiet.
HDF Community Team
Joined: Oct 2018
Posts: 4,347
Likes: 3,392
From: Seattle
I recently installed Cobra Neighbor Haters on my '20 107 Heritage and a PV FuelMoto tune. The bike runs good but the slip ons are loud. I contacted Cobra and it seems that without cats in the pipes this would be the norm and there's nothing they can do. I used an analog sound meter to measure sound levels. While sitting on the seat with the meter arms length on the muffler side, I recorded 104db at warm idle and 116db with some throttle. Three feet from the rear of the bike I measured 90db at idle. Go figured, that's what I was hearing on Youtube most of the time. Oh well, live, spend and learn.
Cobra does not wrap the baffles of their pipes.
When I made my new Slip-Ons for my bike, I wrapped the baffles and installed 158W Thundertorque Inserts into them, which gave me good sound but its pretty quiet. Loud enough to sound good, quiet enough to not **** off the neighborhood.
My neighbors are all still friendly with me so Im willing to bed my bike's exhaust doesnt bother them.
HDF Community Team
Joined: Nov 2022
Posts: 1,133
Likes: 786
From: France
I have the same ones on my Heritage which is a 107 too and it's not that they are too loud, it's more a problem of resonance between the offset of the outputs and especially that of the front cylinder which comes out just in the balance of your body, but with good earplugs I have alleviated the problem a lot, otherwise there is also the solution that FranBunny offers which can be interesting...
Road Warrior
Joined: Aug 2009
Posts: 1,877
Likes: 577
From: Raleigh NC
I'm running Neighbor Haters on my 2021 107 Heritage. I'm very happy with them, I don't think they are too loud at all; but I do ride with ear plugs. I am going to look into the Thunder Torques, you do lose torque with them in 1st and 2nd gear.
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Road Warrior
Joined: Nov 2022
Posts: 1,541
Likes: 543
From: MN
I tried S&S with cats after reading up. Even these have a little too much snap in the pop for me, but oh well. I paid an arm & a leg for them so sticking with them now.
Couldn't stand the whisper quiet stock mufflers.
Couldn't stand the whisper quiet stock mufflers.
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HDF Community Team
Joined: Nov 2012
Posts: 6,190
Likes: 2,419
From: USA
Nothing wrong with going back to the stock pipes, if that's what you like. I personally enjoy their quietness. My only "grrr" with regards to my stock Heritage pipes is that while they are black, they have that chrome tip, which to me looks tacky.
Novice
Joined: Oct 2022
Posts: 18
Likes: 5
From: Louisiana
Loud but Alive
I recently installed Cobra Neighbor Haters on my '20 107 Heritage and a PV FuelMoto tune. The bike runs good but the slip ons are loud. I contacted Cobra and it seems that without cats in the pipes this would be the norm and there's nothing they can do. I used an analog sound meter to measure sound levels. While sitting on the seat with the meter arms length on the muffler side, I recorded 104db at warm idle and 116db with some throttle. Three feet from the rear of the bike I measured 90db at idle. Go figured, that's what I was hearing on Youtube most of the time. Oh well, live, spend and learn.
