RLV Muffler too loud.....

[Baja_brandon96]

I just installed this header and muffler today along with a bigger jet and filter kit. Performance has improved some, but now its pissing off the neighbors. Can anybody recommend something that performs well, but is similar to the stock Predator muffler in terms of noise? (if such a thing exists?)

Header, Mini Bike, 3 Stage HP Center Outlet, for Clamp on Muffler, GX200, GX160, 6.5 Chinese OHV, & 212 Predator

Muffler, RLV, 1 5/16"

 

[BWL]

Honestly I'd chunk the RLV and put the stock muffler back on. Perhaps if you can remove the baffle in the stock muffler that'd give you better performance, but it's still be louder.

 

[San Diego]

If you want the better power from that freer-flowing exhaust, then you have to take the increased noise with it. The stock muffler is restrictive, to both power & noise.

 

[Moto Walt]

You can't have cake and eat it simultaneously in this case sir.

 

[madtom421]

I've stuffed a stainless brillo pad in my rlv it helps take the bite out but it burns up after a few rides. My predator won't even run correctly with the stock exhaust after installing a mod2 cam.

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[Moto Walt]

I've stuffed a stainless brillo pad in my rlv it helps take the bite out but it burns up after a few rides. My predator won't even run correctly with the stock exhaust after installing a mod2 cam.

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Are you positive you checked the valve lash? You could easily have adjusted it when it was on the compression release.

You also need to jet it up.

 

[creia]

Get rid of that RLV silencer(I bet some one on this forum would buy it from you) and get a header pipe that accepts a screw-on "hot dog" muffler. It will quiet down the engine enough to appease your neighbors and it will sound and perform better than the OEM (stock) muffler. When my son and I had our DB30's we did just that on both bikes with the HF 6.5 engines and were very happy with them.
Michael

 

[stargazer7467]

Get rid of that RLV silencer(I bet some one on this forum would buy it from you) and get a header pipe that accepts a screw-on "hot dog" muffler. It will quiet down the engine enough to appease your neighbors and it will sound and perform better than the OEM (stock) muffler. When my son and I had our DB30's we did just that on both bikes with the HF 6.5 engines and were very happy with them.
Michael

I did this as well, the hot dog muffler does and sound decent on a header pipe. I simply used a 1/2 NPT close nipple from the hardware to adapt my clamp on RLV.

 

[shadowfocus603]

I did this as well, the hot dog muffler does and sound decent on a header pipe. I simply used a 1/2 NPT close nipple from the hardware to adapt my clamp on RLV.

+2 on the hotdog muffler here

 

[Baja_brandon96]

Is this what you're referring to?

https://www.OldMiniBikes.com/narrow-frame-pipe-screw-on-muffler.html

 

[creia]

Is this what you're referring to?
https://www.OldMiniBikes.com/narrow-frame-pipe-screw-on-muffler.html

Yes, that is one style that would work. I would recommend adding a header brace as well to keep that pipe from shaking/flexing. Another way to cut costs would be to weld female threaded fitting unto your existing header pipe to accept the hot dog muffler. You could sell your RLV to recoup some costs.
Michael

 

[OUTLAWD]

+1 on the hot-dog

When I made my pipe, I added 3/4NPT to the end and picked up a generic B&S replacement muffler from ACE for $5

I think it is quieter than stock with the muffler

 

[chipper]

I love a good hot dog too !

 

[madtom421]

After reading these posts I decided to change out the rlv muffler. The briggs muffler is so much quieter just holding it up to the pipe. Should get it all together this week. Hopefully won't annoy all the neighbors anymore.

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[davidlamb78]

I've used both. I prefer the RLV, but my neighbors are cool. Hell, I even have a few cops for neighbors, and they just drive by and wave while on duty! If you have anyone in the hood with a Harley, the RLV probalby isn't any louder than that. Unfortunately, the Harley is street legal, and the mini isn't. I have a hot dog on one of my minis. The RLV is on my race kart. Hot dog is way quieter than the RLV for sure. If your motor isn't crazy hopped up, it'll flow well enough.

 

[Baja_brandon96]

I've used both. I prefer the RLV, but my neighbors are cool. Hell, I even have a few cops for neighbors, and they just drive by and wave while on duty! If you have anyone in the hood with a Harley, the RLV probalby isn't any louder than that. Unfortunately, the Harley is street legal, and the mini isn't. I have a hot dog on one of my minis. The RLV is on my race kart. Hot dog is way quieter than the RLV for sure. If your motor isn't crazy hopped up, it'll flow well enough.

Wow, thanks for the thourough answer! Exactly what i was wondering.

 

[Patrick_Moore]

I used 3/4 emt conduit and a pipe fitting and made my own exhausts with a hot dog. it's a nice balance of sound vs performance imo

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