How to Improve OE Sub Bass Quality and Eliminate Vibrations

[jchall30]

Just finished this mod. Here are my contributions to the thread.

-RJM

How much Dynamat did you use? I ordered some but not sure I got enough.

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[Pej1282]

Thic Whips published a YouTube video implementing this DIY fix and gave this thread a referral!

Yeah, because of that video I finally did mine. @tadda did great job creating this DYI

 

[tadda]

Here is embedded video: Nicely done!

 

[iisaintii]

Registered just to comment on how amazingly detailed this thread is, and confirm how much it improves the sound. I have only ported the panel so far and it makes a huge difference. Excited to finish the project.

 

[jchall30]

Got all the stuff in today to do this. Gonna do it Friday. I’m anxious see the improvements.

 

[Kiwi Greg]

Got all the stuff in today to do this. Gonna do it Friday. I’m anxious see the improvements.

You won't be disappointed

 

[Supbrah]

If anyone is looking for the piece where the ports are cut let me know. I’m going to sell my car and want to start returning it to stock, so I’d be down for a trade.

 

[s1nrgy]

If anyone is looking for the piece where the ports are cut let me know. I’m going to sell my car and want to start returning it to stock, so I’d be down for a trade.

Might be faster and cheaper to just buy a replacement at the dealer, that cover is fairly inexpensive.

 

[Supbrah]

Might be faster and cheaper to just buy a replacement at the dealer, that cover is fairly inexpensive.

I haven‘t been able to find it. By chance do you have a link? I searched the part number and couldn’t find it.

Sorry to hijack this thread!

 

[tadda]

I haven‘t been able to find it. By chance do you have a link? I searched the part number and couldn’t find it.

Sorry to hijack this thread!

That narrow rear trim piece you can purchase for $62.34

https://www.bamwholesaleparts.com/v...um--3-0l-l6-gas/body--interior-trim-rear-body

 

[Supbrah]

That narrow rear trim piece you can purchase for $62.34

https://www.bamwholesaleparts.com/v...um--3-0l-l6-gas/body--interior-trim-rear-body

Thanks!

 

[jchall30]

Done!!! Bass is much tighter and more controlled it seems.

 

[Modena]

Done!!! Bass is much tighter and more controlled it seems.

Mine is done, just waiting for Amazon to deliver the 2" foam

 

[jchadwell]

I did the ports and foam insulation yesterday. The speaker grills and wadding I ordered should arrive tomorrow or Tuesday to finish the project. I can tell a difference and hopefully the wadding will improve it even more.

Quick question though. Has anyone tried taking the woofers out and adding the wadding through the big holes in the top rather than those tiny slats on the front? Seems like that would be much much easier and the extra room should make it easier to distribute it more evenly throughout the enclosure as well. Is there something I'm missing?

 

[jchadwell]

I did the ports and foam insulation yesterday. The speaker grills and wadding I ordered should arrive tomorrow or Tuesday to finish the project. I can tell a difference and hopefully the wadding will improve it even more.

Quick question though. Has anyone tried taking the woofers out and adding the wadding through the big holes in the top rather than those tiny slats on the front? Seems like that would be much much easier and the extra room should make it easier to distribute it more evenly throughout the enclosure as well. Is there something I'm missing?

So, studying the exposed pics more closely I believe I see the answer. I thought it was just an open enclosure but it looks more like a very shallow "box" the woofers are in that sits on top of the actual enclosure with just a couple slats for the air to pass through. Still curious if anyone has looked into it and how difficult removing the top panel is. Those top slats are at least bigger and could make it easier to work the wadding where you want it.

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