Brocks Noise Suppressor

[RacingJake]

Picked one up a few days and slapped it in and tighten the two nuts and good to go.

Works good but I do get a rattle noise when backing out the throttle with the bike on the kick stand. On the road you can't hear it.
I have to do more investigation to figure it out ?

 

[sixpack577]

It may be the tolerences on your individual muffler and baffle.
The baffle vibrating against the inner muffler tube.
I would contact them.

 

[RacingJake]

Pulled the muffler off and nothing is loose inside, even stuck a prybar in there and it's GTG. I did notice when I put a rag over the muffler I could see the pulse waves pulling the rag back in the exhaust at the time of the noise so I'm thinking it's some pressure wave and not ball bearings rolling around it there.

 

[sixpack577]

No, I mean that the tube of the baffle may be vibrating against the inside of the muffler.

 

[sixpack577]

I just got the video to play, and something is off with that.
No way I could stand that, they'd be hearing from me.
Sh*t quality is rampant everywhere these days.

 

[Blkoutbusa]

Just leave it out??? Lol. All jokes aside, something is wrong and I wouldn't deal with that sound either ...

 

[60+ Busa Rider]

I just got the video to play, and something is off with that.
No way I could stand that, they'd be hearing from me.
Sh*t quality is rampant everywhere these days.

Quality! What is this quality you speak of? Lol

I returned $400. Of parts one day to rhymes with Mapa for my Duramax because all the boxes said made in China and I told the counter guy I ain’t putting this Chinese crap on my truck and I went straight to huge Chevrolet dealership in town and got the same parts and all the boxes said made in Mexico. Take your pick.

 

[Dnyce]

Mexico over china

 

[60+ Busa Rider]

Yea that’s what I chose to

 

[pcs]

the phone you using to interact with this site is probably made in china along with many electronic parts in that maxi truck. not saying you have to like it but it’s the current reality =(

 

[RacingJake]

No, I mean that the tube of the baffle may be vibrating against the inside of the muffler.

I checked that too and it's solid. I finally broke out my Harley Davidson tape and found the problem, it's the two holes that allow the mounting screws to go through that causes the noise during the negative pressure wave. Cover the holes and no rattle, remove the tape it rattles. I'll just enlarge the holes so it won't whistle while it works LOL.

whislte

 

[sixpack577]

I checked that too and it's solid. I finally broke out my Harley Davidson tape and found the problem, it's the two holes that allow the mounting screws to go through that causes the noise during the negative pressure wave. Cover the holes and no rattle, remove the tape it rattles. I'll just enlarge the holes so it won't whistle while it works LOL.

View attachment 1662642whislte

Will that not make it louder?
Or still make a noise?

 

[RacingJake]

Quality! What is this quality you speak of? Lol

I returned $400. Of parts one day to rhymes with Mapa for my Duramax because all the boxes said made in China and I told the counter guy I ain’t putting this Chinese crap on my truck and I went straight to huge Chevrolet dealership in town and got the same parts and all the boxes said made in Mexico. Take your pick.

I'll take Mexico ! Cause that's where my Garrett 50 trim turbo is made and it been going strong for years at 25 PSI on my T-Bird. Here's a China turbo at 15 PSI lasted less than 90 days LOL. I call it my China Rose.

 

[RacingJake]

Will that not make it louder?
Or still make a noise?

It will have no affect on how loud it is cause those 2 holes are on the outside of the baffle but will stop the rattle noise.

 

[RacingJake]

Fixed with a Dremel and the Rattle noise is gone.