Noise reduction - Cabin drone

[MBono]

Anyone have any experience using Luxury Liner, Dyna Mat, Dyna Liner, Hush Mat etc.....to kill cabin drone?

I went with the Injen axle back just to change the exhaust note a little. Certainly wasn't expecting this amount of drone.

Thanks

 

[squiggy]

I have used Fat Mat and GTMat in the trunk and rear deck...still off-gassing a tar smell in the heat two years later. Does help with the sound a bit though.

 

[MBono]

Thanks @squiggy. Have not come across either of those yet. Will do more research. I'm only looking to do the trunk so hopefully that works.

I did see a Porsche owner add almost 350 .lbs of some sort of liner (did the entire cabin). No thanks! Haha

 

[Monk]

Ear plugs work well when the sound is bothersome......... they are light, and very cheap..........

 

[webby]

I have used Fat Mat and GTMat in the trunk and rear deck...still off-gassing a tar smell in the heat two years later. Does help with the sound a bit though.

when you did the trunk, did you line the entire lower area where the spare tire is etc? I'd imagine that would make a big difference in helping block some drone.

 

[squiggy]

when you did the trunk, did you line the entire lower area where the spare tire is etc? I'd imagine that would make a big difference in helping block some drone.

Yeah, I did the entire trunk. Still have a bit of trim work and rework to do on the trunk lid. It does help with the drone considerably.

 

[MBono]

Doing more research on other forums (other vehicles even), the true fix seems to be a side branch resonator. Ever heard of that?

 

[Joshua Williams]

Doing more research on other forums (other vehicles even), the true fix seems to be a side branch resonator. Ever heard of that?

 

[MBono]

Thanks @Joshua Williams

Thats exactly what I'm looking to do. Just need to figure if/how it can be done.

When I saw that pic of the Accord in the screenshot, I thought it was a joke. Haha

 

[Joshua Williams]

No problem! Yea, those haggard boys are jokesters and they do some interesting things ha ha.

 

[ct.yankee672]

No problem! Yea, those haggard boys are jokesters and they do some interesting things ha ha.

The haggard garage is in my neck of the woods. I kind of want to meet them.

 

[Joshua Williams]

The haggard garage is in my neck of the woods. I kind of want to meet them.

Dude! You totally should!

 

[MBono]

Synapse Engineering has exactly what I'm looking for. They make precut j-pipes (Helmhotlz Reaonator, side-branch resonator - all the same) at various lengths.

Now I just need to calculate the db's and determine which length I need and where I can tack it.