M3 Weight Data Thread

[Casa de Mesa]

Yeah I kept hearing 60-70lbs, which seemed ridiculous. I dont know if there is something different on non-m e46 to deem that inflated number more "true".

But even with sunroof motor, sun visors, dome lights, etc you dont net more than about 35-40lbs. Still, like you said, farthest from cg. Roof, from what I gathered, might be another ~10lbs, for more carbon $.

I bet it's closer to Lang's estimate. I have my entire steel sunroof panel and will weigh it this weekend.

[usdmej]

just want a dumb car with no screens these days.

business cd with bluebus seems to be the sweet spot for that imo

[Thoglan]

Do you have a part number for the compact liner?

51478266567 for the liner. You also need the no-option tray as well which is 51478193797

[SQ13]

I think the business CD unit doesn’t need most of the stuff in the trunk, perhaps excluding the HK amp. Nav unit definitely runs on the DVD drive back there, the screen is just a terminal.

I have all the parts to convert my car to business CD, wiring harness included so I can remove the nav one. Will be starting on that endeavor in a week or so, already have the interior removed. I think it should save a decent amount of weight based on this thread (20+ pounds?) and return some trunk space too (I bought the compact carpet liner).

Avin is an option but I was very unimpressed with the one I bought for my E39 a couple months ago and just want a dumb car with no screens these days.

Do you have a part number for the compact liner?

[repoman89]

if i remember correctly, the Nav headunit is connected to the nav brain in the trunk (which is wired to the vehicle). So it makes sense you lost some function by deleting just that.


the easiest (possibly only) way of deleting the whole trunk assembly while keeping car wired audio is to to run/wire an Avin (or any other aftermarket) unit directly to the vehicle and bypass all of the factory wiring

I think the business CD unit doesn’t need most of the stuff in the trunk, perhaps excluding the HK amp. Nav unit definitely runs on the DVD drive back there, the screen is just a terminal.

I have all the parts to convert my car to business CD, wiring harness included so I can remove the nav one. Will be starting on that endeavor in a week or so, already have the interior removed. I think it should save a decent amount of weight based on this thread (20+ pounds?) and return some trunk space too (I bought the compact carpet liner).

Avin is an option but I was very unimpressed with the one I bought for my E39 a couple months ago and just want a dumb car with no screens these days.

[usdmej]

I tried to trim this the other day by just removing the nav unit from that assembly and my screen wouldn't work anymore. Im wondering what the best way to go about deleting that whole assembly is, but also keeping music as a creature comfort so to say.

if i remember correctly, the Nav headunit is connected to the nav brain in the trunk (which is wired to the vehicle). So it makes sense you lost some function by deleting just that.


the easiest (possibly only) way of deleting the whole trunk assembly while keeping car wired audio is to to run/wire an Avin (or any other aftermarket) unit directly to the vehicle and bypass all of the factory wiring

[Thoglan]

I tried to trim this the other day by just removing the nav unit from that assembly and my screen wouldn't work anymore. Im wondering what the best way to go about deleting that whole assembly is, but also keeping music as a creature comfort so to say.

Radio delete, remove all the speakers. Use a bluetooth speaker that weighs a couple lbs. I found one that fits pretty nicely in the center console tray and the sound is good enough for me for the occasional time that I listen to music or a podcast on a long drive.

[CrisSilberGrau]

Could double your seat cost and get the Carbon nogaros to save another ~20 lbs :P

And/or nix the sliders and use the BK direct to floor mounts to save another ~10 lbs.

62 lbs is a ton of weight to take out of the car in one mod! I only measured ~59 lbs from my Nogaros, but they're leather/heated.

Seem like I may do that. At 6'3" the current setup still doesnt allow for comfortable tracking with a helmet. I would keep the slider for the passenger. Although honestly I dont use the rear seats that much. And Im quite likely to put in a yurkancage in the very near future.

Cf roof is the next big mod, and im pretty much done. Then it's little things. I have a CSL trunk going in too thats quite light as well. Seats are best mod after the CSL intake.

Obioban would love the CF nogaros, but they are literally half the purchase price of my car.

[CrisSilberGrau]

didnt know this thread existed! feel free to cross reference my HK audio weight thread, i'll try to remember this one whenever i update my own

https://nam3forum.com/forums/forum/main-forum/e46-2001-2006/160268-hk-audio-component-weights

Nav head unit - 6.2 lbs
2x front tweeter/mid + 2x front woofer - 3 lbs
2x rear side speaker + 2x rear deck speaker - 3 lbs
rear subwoofer assembly - 7.5 lbs
BM53/IBUS/GPSDVD/HKamp/mountingbracket - 15.5 lbs
complete nav audio wiring harness - 11 lbs

I tried to trim this the other day by just removing the nav unit from that assembly and my screen wouldn't work anymore. Im wondering what the best way to go about deleting that whole assembly is, but also keeping music as a creature comfort so to say.

[usdmej]

Post up the things you've weighed and I'll update this post.

didnt know this thread existed! feel free to cross reference my HK audio weight thread, i'll try to remember this one whenever i update my own

https://nam3forum.com/forums/forum/main-forum/e46-2001-2006/160268-hk-audio-component-weights

Nav head unit - 6.2 lbs
2x front tweeter/mid + 2x front woofer - 3 lbs
2x rear side speaker + 2x rear deck speaker - 3 lbs
rear subwoofer assembly - 7.5 lbs
BM53/IBUS/GPSDVD/HKamp/mountingbracket - 15.5 lbs
complete nav audio wiring harness - 11 lbs

[usdmej]

Mtexture Electric, bolster, lumbar seats w/ rails.


Total weight loss around 62lbs wish it was more.

blame those expectations on all the vendors and social media channels out there that weigh a complete stock seat and then compare it to a bare aftermarket seat while ignoring all the hardware needed to bolt it onto the car when they advertise your potential weight savings

[Obioban]

Mtexture Electric, bolster, lumbar seats w/ rails.

~65lbs per seat

Cobra Nogaro Circuit, mtexture, breykrause mounts/manual lever, oem manual seat rails.

~34lbs per seat

Pics me holding the seats. Took numerous measurements and the average best was taken.

Total weight loss around 62lbs wish it was more.

Could double your seat cost and get the Carbon nogaros to save another ~20 lbs :P

And/or nix the sliders and use the BK direct to floor mounts to save another ~10 lbs.

62 lbs is a ton of weight to take out of the car in one mod! I only measured ~59 lbs from my Nogaros, but they're leather/heated.

[CrisSilberGrau]

Mtexture Electric, bolster, lumbar seats w/ rails.

~65lbs per seat

Cobra Nogaro Circuit, mtexture, breykrause mounts/manual lever, oem manual seat rails.

~34lbs per seat

Pics me holding the seats. Took numerous measurements and the average best was taken.

Total weight loss around 62lbs wish it was more.

[gorilla69]

Some exhaust weights. Net, you are gaining a few lbs going from stock to SS.

SSv1 15.5 lbs
SS race cats 18 lbs
SS oversized res s2 23.5 lbs

Stock headers 18.5 lbs
Stock s1 14 lbs
Stock s2 20.5 lbs

I don't have the stock muffler and am not planning on dropping my SS sport for measurement any time soon, so don't have those numbers.


Sent from my SM-G950U using Tapatalk

Ss sport std size is about 20kgs iirc

[slavik1988]

For all that are wondering the weight of the stock and a Dinan exhaust...


Stock:


Dinan: