Rear seat sound insulation part number

[Thoglan]

If I had seen this thread earlier I could have just test fit the insulation from my compact in the M3.

[0-60motorsports]

Looking forward to seeing how 51488252759 fits. Its in my cart ready to order from FCP. Hopefully karter16 gets his before the blackfriday sales.

[ugaexploder]

Paid the Customs bill today, so should get it next week!


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nice, great news!

[karter16]

karter will probably end up getting his in way before me. fcp had it estimated for the week of 12/6 currently

Paid the Customs bill today, so should get it next week!


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[ugaexploder]

karter will probably end up getting his in way before me. fcp had it estimated for the week of 12/6 currently

[thegenius46m]

Curious to see pics of the install from the guys that ordered the new mat. I just did a vincebar on my car and really want to replace the insulation now. I originally ordered the new part before the job thinking this mat would just flop around everytime I take out the rear bench but after reading this thread and looking at the cutout points further while my car was apart, the new mat might work fine similar to the E9x insulation.

If not, I'll just be ordering the original 055 part number. It's interesting… my 05 ZHP is only 3 years newer and has the similar insulation to the m3 and it's still plenty soft and hasn't cracked after all these years, so I may just get the 055 part number unless someone here convinces me the new part fits securely and is indeed a once and done purchase since the new stuff won't degrade.


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[karter16]

Oh I completely get it! There are some things I'm not willing to compromise on. Some things I clearly am willing to though.

My comment wasn't really directed at you or anyone else in this thread. It was merely to offer up an alternative approach that worked well for me. If my comment landed like a turd in the punch bowl, it wasn't my intention! There are likely others reading this thread that aren't posting (cause they haven't joined the forum... shameful) and they may get value out of my non-sanctioned approach.

Hahaha “turd in the punch bowl” 😂 I haven't heard that one before. Nah I didn't read it like that at all, I just more meant I know that I'm particular/silly with some of this stuff so was just clarifying that I'm not suggesting that a genuine part is the only “proper” way to do it :-) indeed your approach or dyna-mat probably gives a better overall result in terms of noise reduction, etc.


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[simonnim]

People definitely overused dynamat during the SPL days.

[Casa de Mesa]

For sure - appreciate what you're saying and indeed I acknowledged in my original post that in absolute terms a solution such as what you suggest is probably best. What interests me most about this is that this part number exists which seemingly none of us really know much about (which doesn't happen very often with this platform these days). Appreciate that I'm in the minority in being so particular about having a "genuine" product, I am well aware it's a bit dumb, but oh well 😅

Oh I completely get it! There are some things I'm not willing to compromise on. Some things I clearly am willing to though.

My comment wasn't really directed at you or anyone else in this thread. It was merely to offer up an alternative approach that worked well for me. If my comment landed like a turd in the punch bowl, it wasn't my intention! There are likely others reading this thread that aren't posting (cause they haven't joined the forum... shameful) and they may get value out of my non-sanctioned approach.

[karter16]

Kind of funny how excited I am for this.

Please post pics when it arrives!

Kind of funny how excited I am for this.

Please post pics when it arrives!

Got a notification that it's in-country with Customs now so hopefully get it in the next week or so! Will post photos when I get it


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[karter16]

The yoga mats I mentioned up above work pretty well. I've used them in other vehicles and they do wonders if you're smart about their use. Plus they are easy to cut to size also help with dampening vibration some (what dynamat does) when you compression fit them.

It's not a genuine BMW product, but unless the judge starts to disassemble your car at the concours, you probably won't get hit with demerits.

For sure - appreciate what you're saying and indeed I acknowledged in my original post that in absolute terms a solution such as what you suggest is probably best. What interests me most about this is that this part number exists which seemingly none of us really know much about (which doesn't happen very often with this platform these days). Appreciate that I'm in the minority in being so particular about having a "genuine" product, I am well aware it's a bit dumb, but oh well 😅

[bmwfnatic]

Well it sorta fits:



There's a raised portion in the middle that flattens out easily and some trimming is required for clearance around the seat back and belts. But overall fits pretty decent.

Also weighed in at 2 lbs, so slightly lighter than what realoem says. Will only get lighter after trimming

I saw an E46 Compact the other day at the junkyard, without rear seats, it had this piece pictured fitted, so I suppose it is originally for a Compact.

[Obioban]

Haha I'll be providing an update soon - ordered mine a few weeks ago :-)


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Kind of funny how excited I am for this.

Please post pics when it arrives!

[Casa de Mesa]

The yoga mats I mentioned up above work pretty well. I've used them in other vehicles and they do wonders if you're smart about their use. Plus they are easy to cut to size also help with dampening vibration some (what dynamat does) when you compression fit them.

It's not a genuine BMW product, but unless the judge starts to disassemble your car at the concours, you probably won't get hit with demerits.

[ugaexploder]

Personally, I think dynamat gets way overused. It’s not sound insulation, it is heavy, and removing it is terrible.

I've never had to remove any, I bet it can be a real nightmare.

I'm guilty of the overuse part in the past, and it's really easy to go overboard on it when you buy the bulk pack. You start hunting for spots to apply lol.

And now, it looks like they are making liners that go on top of the original dynamat.