C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

W203 C350: What Parts Fit?

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Old Jul 16, 2007 | 11:01 PM
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W203 C350: What Parts Fit?

I am sick and tired of the W203 C350 M272 model being left out of all the fun. Ok, so there aren't many on the street but they always seem to be left out of the mods party! Just look at the title of this forum! Where the C350?!? Forgotten (or excluded)! Here's what got me started on my ranting. I checked out the Remus Exhaust website today and they had a part number for an axle-back exhaust system for the C350 so I wrote them about it. Turns out it's for the W204 which you can't even buy over here yet! There are zero on the roads yet they have a decent exhaust system out for them. And none for the W203 of course which has been on the roads for over 2 years now. So I was hoping W203 C350 owners who have done performance mods will list them here. What fits. I'd like to see them fall into the following categories. If you have any first hand knowledge about parts that fit in these catagories I'd love to hear about them.

Mufflers or silencers -

Axle-back or cat back exhaust -

Air boxes /cold air intakes -

Headers -
Kleeman said the SLK350 headers can fit with HEAVY modification

High-flow cat pipes -

Shifter / linkage -
Schatz Prestige shifters fit, nice chrome trim ring for the boot
High-flow resonator pipes -
Resonator delete works fine, $100 and 1 hour, use stainless 2 1/2" pipe
Cams -

ECU reprogrammers (93 octane) -

MKB ($3000, most expensive)
Kleeman ($1500)
Carlsson (305hp, most HP, not cheap)
Powerchips (best price)
Speed Innovations (21hp and 29ft-lbs for $700, most hp/tq/$)
Manifolds -

Turbos / superchargers -

Fuel injectors -

Throttle bodies (?) -

Transmission reprogrammers -

Wheels (18"/19") -

TSW Bremmas 19" double spokes fit over the 4-piston calipers with no spacers and no fender mods, EuroTeck Motorsports has then for $1850 shipped with Nitto NT555 Extreme 235/35 and 265/30 tires mounted (here's the link)

Tirerack shows nothing

Looks like C32 wheels will clear the C350 4-piston calipers
Air filters -
K&N (website has a part number now, I'm using them, work great)

K&N Part Number is 33-2859 (here's the link)

Lowering springs -

Performance shocks -

Sway bars / bushings -

Brakes (calipers/rotors/pads) -

Last edited by Drop-a-Daimler; Jul 17, 2007 at 06:47 PM.
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Old Jul 16, 2007 | 11:07 PM
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2004 C32 ///AMG
M272 is the 2006-2007 C230's engine.
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Old Jul 16, 2007 | 11:09 PM
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2004 C32 ///AMG
Most W203 parts from other models will fit the C350....

same car, different engine.
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Old Jul 16, 2007 | 11:15 PM
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Originally Posted by rlee02135
M272 is the 2006-2007 C230's engine.
Oh, sorry. I thought the M272 E25 is in the C230, the M272 E30 is the C280's 3.0L and the M272 E35 engine was what I had under the hood, the 3.5L 24-valve DOHC SFI 90 degree V6 with the aluminum block and silicon/aluminum lined cylinders.

PS: That is the second time I have tried to wipe your bug off my laptop screen.

Last edited by Drop-a-Daimler; Jul 16, 2007 at 11:18 PM.
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Old Jul 16, 2007 | 11:30 PM
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2004 C32 ///AMG
Originally Posted by Drop-a-Daimler
PS: That is the second time I have tried to wipe your bug off my laptop screen.
LOL
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Old Jul 17, 2007 | 03:43 PM
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Drop-a-Daimler
TSW Bremmas 19" double spokes fit over the 4-piston calipers with no spacers and no fender mods,
MBUSA specs quote the front calipers as dual-piston. Typo on your part or did you upgrade your brakes?

-Jeff
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Old Jul 17, 2007 | 03:53 PM
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a quarter mile at a time
Originally Posted by Jeffy
Drop-a-Daimler


MBUSA specs quote the front calipers as dual-piston. Typo on your part or did you upgrade your brakes?

-Jeff
MBUSA website isn't always correct.

Seems like all the C350 SS's got the 4 piston calipers from the C32/C55.
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Old Jul 17, 2007 | 03:57 PM
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Originally Posted by Jeffy
Drop-a-Daimler


MBUSA specs quote the front calipers as dual-piston. Typo on your part or did you upgrade your brakes?

-Jeff
Some 350's (I think in '07) ended up having 4 piston, just like the 2004.5 and early build '05!
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Old Jul 17, 2007 | 04:01 PM
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Originally Posted by rlee02135
LOL
seriously.. that bug is getting to me as well. lol
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Old Jul 17, 2007 | 04:32 PM
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07 c230 brakes were 4piston too. if they arent, then they are surely some BEEFY 2 pistons
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Old Jul 17, 2007 | 04:34 PM
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a quarter mile at a time
Originally Posted by BadAssC230k
07 c230 brakes were 4piston too. if they arent, then they are surely some BEEFY 2 pistons
2007 C230's do NOT have 4 piston calipers, they have 2-piston calipers.
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Old Jul 17, 2007 | 05:14 PM
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Originally Posted by Jeffy
Drop-a-Daimler


MBUSA specs quote the front calipers as dual-piston. Typo on your part or did you upgrade your brakes?

-Jeff
No, it's correct, the 2006 and 2007 C350 Sport Sedan models (W203 M272 E35 to be exact) get 4-piston calipers up front with the cross drilled, vented rotors all the Sport models got. So in most wheel catalogs you will find almost no wheels for that specific model (without crazy spacers). And if you do see a part number, then I would ask specifically about the fitment because some suppliers I have talked to will sell you a general W203 wheel and it will not fit. That's one reason why I avoid the "most W203 parts will fit". As it turns out, when you dig a little, mufflers are a toss up, wheels don't, headers don't, and cams don't. So buyer beware.
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Old Jul 17, 2007 | 05:20 PM
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a quarter mile at a time
Originally Posted by Drop-a-Daimler
No, it's correct, the 2006 and 2007 C350 Sport Sedan models (W203 M272 E35 to be exact) get 4-piston calipers up front with the cross drilled, vented rotors all the Sport models got. So in most wheel catalogs you will find almost no wheels for that specific model (without crazy spacers). And if you do see a part number, then I would ask specifically about the fitment because some suppliers I have talked to will sell you a general W203 wheel and it will not fit. That's one reason why I avoid the "most W203 parts will fit". As it turns out, when you dig a little, mufflers are a toss up, wheels don't, headers don't, and cams don't. So buyer beware.
easy thing for wheel fitmet is just lookup wheels for the C32 or C55.
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Old Jul 17, 2007 | 05:22 PM
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Originally Posted by Drop-a-Daimler
So in most wheel catalogs you will find almost no wheels for that specific model (without crazy spacers). And if you do see a part number, then I would ask specifically about the fitment because some suppliers I have talked to will sell you a general W203 wheel and it will not fit. That's one reason why I avoid the "most W203 parts will fit". As it turns out, when you dig a little, mufflers are a toss up, wheels don't, headers don't, and cams don't. So buyer beware.
Well, I'm not sure I agree on why the 350 is not listed in most catalogs. My theory is that it is an engine that is 2 years old and realistically, to get wheels, all a w203 owner with 4 piston calipers would need to do is check for the C32 setup. No reason for wheel companies to re-do all of their catalogs, just to indicate the 350's, which have the same brakes as the 2004.5.

Believe me, that's how I had to approach buying wheels. Every single set-up I saw, I had to look at the C32 setup and nothing less in order make sure that I was getting a setup that would clear the front brakes.
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Old Jul 17, 2007 | 05:26 PM
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Originally Posted by e1000
2007 C230's do NOT have 4 piston calipers, they have 2-piston calipers.
your right. my bad. just beefy dual piston with cross drilled.
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Old Jul 17, 2007 | 05:31 PM
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Originally Posted by sanf
seriously.. that bug is getting to me as well. lol
me too Damn you Robert!
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Old Jul 17, 2007 | 05:41 PM
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Originally Posted by drexappeal
Well, I'm not sure I agree on why the 350 is not listed in most catalogs. My theory is that it is an engine that is 2 years old and realistically, to get wheels, all a w203 owner with 4 piston calipers would need to do is check for the C32 setup. ..
It's a valid point and I tend to agree. It's how I started my search after seeing NO C350 part numbers. But I am always still wary. The AMG calipers are 4-piston but look slimmer so I still try to verify.
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Old Jul 17, 2007 | 05:44 PM
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Originally Posted by Drop-a-Daimler
It's a valid point and I tend to agree. It's how I started my search after seeing NO C350 part numbers. But I am always still wary. The AMG calipers are 4-piston but look slimmer so I still try to verify.
I have the same exact 4 piston setup. So, if you need verification, my setup clears without ANY problems (although, I do have 3 piece wheels). Anyways, when I was initially ordering, I told the shop to base the setup on the C32 setup.
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Old Jul 17, 2007 | 06:41 PM
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Originally Posted by drexappeal
... I told the shop to base the setup on the C32 setup.
Cool. Good tip. I've added it to the Wheels section at the top.
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Old Jul 17, 2007 | 07:00 PM
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Originally Posted by drexappeal
Some 350's (I think in '07) ended up having 4 piston, just like the 2004.5 and early build '05!
I think both the sport 350's ('06 and '07) came with 4 pistons, last time I checked was in my garage
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Old Jul 20, 2007 | 11:53 AM
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We just got confirmation from Remus Austria that our C320 exhaust system will fit the C350 W203.

http://www.remusexhaustshop.com/merc...548-p-854.html

10% off for all members + 7% if you refer another member.
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Old Jul 20, 2007 | 01:37 PM
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good deal Mathieu !
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Old Jul 20, 2007 | 02:11 PM
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Originally Posted by REMUS
We just got confirmation from Remus Austria that our C320 exhaust system will fit the C350 W203.

http://www.remusexhaustshop.com/merc...548-p-854.html

10% off for all members + 7% if you refer another member.
Man, you guys are fast. I just got your email confirming this fitment and came here to update my thread and ... it's already posted!

Any thoughts about improvements since the C320 makes considerably less horsepower than the C350 (215 vs. 268), is there a risk that the C320 system will be restrictive when applied to a C350? The pipe diameters appear to be the same.
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Old Jul 20, 2007 | 03:23 PM
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if the pipe diameters are the same, then it wouldn't be restrictive.
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Old Jul 20, 2007 | 04:05 PM
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Email has been sent to answer your question.

Basically, all our Sports Label exhaust systems are straight through, since the diameter of the piping is the same, performance will thus not be affected
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