CSL v's M3 - Exact part differences needed!!

[daytonaviolet]

does anyone know if the csl splitters are still availalble

51117896379
51117896380

[Loaded]

Great archive!

[cossack]

Realoem isn't always correct. Over the years I've noticed a few discrepancies myself.

The only one that is still there is the one in the driver side foot well (RHD car)

Craig, apologies for stealing your photos - if you want them removed let me know and I'll remove them.

Thank you, I'm gonna be tackling this here shortly. I'm a bit worried how much road noise it really reduces, but once I get the airbox I'm sure I won't care about road noise.

[NZ_M3]

It looks like there is still some sound deadening when comparing the realoem parts list between the standard M3, and the CSL. That's why I ask, is it seems like there is some still present in the car. I may just decide to pull all of it out though.

Realoem isn't always correct. Over the years I've noticed a few discrepancies myself.

The only one that is still there is the one in the driver side foot well (RHD car)

Craig, apologies for stealing your photos - if you want them removed let me know and I'll remove them.

[cossack]

Inside or under the car??

Basically if you pulled the full interior out there's not a single piece of sound deadening stuck or glued to the chassis.

Apologies to Craig for dragging up your old part out thread ... see his photos when he stripped his car:

https://nam3forum.com/forums/forum/c...stripdown-pics

It looks like there is still some sound deadening when comparing the realoem parts list between the standard M3, and the CSL. That's why I ask, is it seems like there is some still present in the car. I may just decide to pull all of it out though.

[NZ_M3]

Wondering if anyone's compared which sound deadening was removed to be exact from the CSL compared to the regular M3 model. Can anyone run a reverse part number look up, on what sound deadening is missing from the CSL. I'm looking at shedding some extra weight off the car.

Inside or under the car??

Basically if you pulled the full interior out there's not a single piece of sound deadening stuck or glued to the chassis.

Apologies to Craig for dragging up your old part out thread ... see his photos when he stripped his car:

https://nam3forum.com/forums/forum/csl-register/csl-register-main-discussion-centre/387051-csl-stripdown-pics

[cossack]

Wondering if anyone's compared which sound deadening was removed to be exact from the CSL compared to the regular M3 model. Can anyone run a reverse part number look up, on what sound deadening is missing from the CSL. I'm looking at shedding some extra weight off the car.

[_Nathan_]

You have too much time on your hands dude!

[alexk]

I personally think we need to count the welding points, the ones visible and compare them to a normal M3.

I started documenting the welding points.

[alexk]

I think you will find that some of the items above are actually exactly the same as the standard M3 item.

Some times BMW sell particular items as a complete build up unit rather than individual items and list them differently for different cars - but it is actually the same as the standard M3 item.

The only items in the above that is actually different to the standard M3 are:

12517833366 - Wiring harness, engine grbx. module (1.83kg) // Normal M3 with SMG 1.87kg
25162282560 - shift knob alcantara http://bmwfans.info/parts/catalog/25162282560/
31332282508 - bumpstop
33532282503 - rear damper adapter
51477896369 - floor covering front http://bmwfans.info/parts/catalog/51477896369/
51477896370 - floor covering rear http://bmwfans.info/parts/catalog/51477896370/
61116975073 - main wiring harness http://bmwfans.info/parts/catalog/61116975073/ (16.51kg) // Normal M3 18.93kg
61672695531 - Head lamp cleaning device container http://bmwfans.info/parts/catalog/61672695531/
61677892701 - Windshield cleaning container http://bmwfans.info/parts/catalog/61677892701/
64546928033 - Compression shroud http://bmwfans.info/parts/catalog/64546928033/

Interesting about the interior carpet - it seems it is LHD cars only - which leads me to suspect that the lighter carpet only came in the LHD cars and not the RHD cars - the reason - the RHD cars have the same carpet as the standard M3.

But awesome program!! I did it all manually originally when I compiled the list.

Tom, are you adding these too ?

BTW, no info about color codes.
There is a lack of knowledge at BMW M.
I asked for the chassis stiffness, they didn't know the number.

Having said that. I somehow doubt what they said.
I personally think we need to count the welding points, the ones visible and compare them to a normal M3.

[NZ_M3]

Tom > We confirmed today that the CSL does NOT have more welding points on the chassis neither less under carriage undercoating.

Excellent! Amended!!

So did you guys find out anything more?? Like the interior coating codes ect?? :-D

[alexk]

Tom > We confirmed today that the CSL does NOT have more welding points on the chassis neither less under carriage undercoating.

[_Nathan_]

5 bhp I can believe from the manifold, RHD manifolds are far more restrictive than the LHD ones, look at the LHD Supersprint and Epic manifolds compred to the RHD supersprint one, far better. Looking forward to getting a better LHD manifold on mine :thumbs:

[alexk]

Why do they have more power? Do they run a different manifold as that is the only difference made possible by having the steering wheel on the correct side.

Yes, the manifold of cylinders 4-6 is different between LHD/RHD.
I don't know what is the number but in the older days the RHD were usually 5bhp down because of the different exhaust manifold.

[_Nathan_]

Why do they have more power? Do they run a different manifold as that is the only difference made possible by having the steering wheel on the correct side.