Rock Auto has the 360mm 2 piece Brembos for $303 each right now.

look under 2010 C63 to find them.

I just bought a pair of those, as well as a set of Ferodo DS2500 from BestBrakes.

 

Are these the P31 front rotors ?

 

Technically they are the P30 rotors, the early cars had the 2 piece rotors, the P31 cars have the 1.5 piece rotors meaning they are aluminum hats but they can't be removed from the rotor like the P30 rotors. Both fit either car.

 

Not trying to crap on your thread b/c that's a cheap price.
FCP Euro has them for $379 ea which includes the lifetime warranty. $160 is cheap insurance for front rotors for life.
https://www.fcpeuro.com/products/bra...mbo-2194210212

 

When you have to replace them, after you’ve bought the next set from FCP and boxed your old ones back up to pay return shipping to then get a refund, it’s not worth the hassle for me.

It’s like sending in a mail in rebate. Does anyone actually do that anymore?

 

Fair point. A big ticket consumable like rotors at $600+ price point is worth that hassle to me, especially since I live walking distance to a UPS store. Something like swaybar endlinks, not so much.
Regardless, thanks for sharing RockAuto tip.

 

I've been looking into brakes for this up coming season as well. I was thinking about picking up a set of Giro disc 2 piece rotors instead of the Brembo's.
From the pricing I'm getting here local the Giro discs are about $300 more expensive. How would you guys say the 2 perform against each other?
Also was going to go with Endless MX72 pads but damn are they expensive!

 

On past cars I have used Girodisc 2pc rotors as well as the Endless MX72 pads (as well as Endless rf650 fluid) and it is a great setup for sure!! Over time you recoup that money because you are simply buying the rings and hardware whereas the brembos are not designed to have the hats re-used (although you can probably have Coleman make a set of rings to fit). Girodisc uses Coleman rings which are arguably some of the best rotors out there.

Rotors will perform exactly the same, braking is almost all about the pads.

 

Work for cls?

 

Also a fair point. I thought about that some more after I said it.



I would be interested in getting pricing for the Coleman rings for the Brembo hats. I prefer the slotted only design.

Also, the best pad I have ever had, hands down, are the Ferodo DS2500. Nothing else comes close. I’ve had the Porterfield R4S, EBC, Powerstop, Wilwood’s street pad.

The DS2500 always had the best combo of cold bite, and maintained a flat CoF throughout the temperature range. The DS2500 also was the nicest pad to the rotors. Most of these fancy pads wear the rotors out faster than the pads.

 

You would have to talk to them and get all the measurements etc. They have great metallurgy as well as vane design (which is why Girodisc are highly regarded imho)

For a street driven car I would stick to the drilled as that is what gives them good manners in the wet. Slotted and blank rotors in such a large swept area usually have a moment of little to no braking power in the wet on initial application. Drilled rotors don't exhibit this same phenomenon which is why most factory performance cars with large rotors (mercedes, porsche etc) use drilled rotors. Slotted are ok for the track where drilled run into more heat/cycling related problems

 

The measurements are the easy part. We know they already have a disc the proper size, the question is, what is the diameter and number of bolt holes on the hat/ring interface.

I prefer slotted for precisely that reason. Drilled rotors like to get stress cracks, and they become grooved. I can get better pictures of the grooving that I am talking about when I get the old rotors off the car. Smooth face rotors also get uneven wear across the swept surface because of the different surface speed of the rotor with respect to diameter at a given spot on the rotor.

Slotted rotors sweep the face of the pad and keep high spots on the pad from forming. Pads don’t last quite as long, but who really cares...

The reduced braking ability with a wet rotor is likely overshadowed by the reduced traction of the tire at the road if conditions are wet enough to keep the rotor continuously damp. I’m usually not driving spiritedly enough to need the extra 500ms that a dry vs wet rotor would save when it is wet enough to worry about it.

 

When I get my shop up and running I am going to be experimenting with carbide faced rotors.

The factory spec for rotor wear is 33mm minimum thickness.

33 from 36 is 3. 3x .0393” = .117” Or as near as makes no difference 1/16” from each face.

I will be grinding a set of rotors for carbide coating (HVOF) and experimenting with them on my VW, and potentially my truck. Depending on how that goes, I will grind a set for a Mercedes.

 

I am a cheap SOB and keeping 3 elderly BMW's (2 belong to my kids and one is mine) and the C63 going, I buy everything from FCP and have gone through lots of free replacement brakes, pads, oil changes you name it never paid for anything twice - i am close so shipping is pretty cheap. Biggest hassle is returning oil as you have to put it back in the bottles but I get 60 bucks back. For brakes especially throw them back in the box the replacements come in, slap a label on them and throw them on my porch and get 700 bucks back - totally worth it!

 

hold the phone -

you return used oil and filter to fcp and get new oil/filter for each change? I knew they had a lifetime warranty, but really?

 

i thought oil and filters weren't included in their lifetime warranty?

 

I’ll be damned - oil and filters are included.

so I can start my 1,000 mile oil change intervals now

 

FCP is the chit just got new rotors and pads for my ml350 and saved almost 700.

 

I have no idea how/why FCP does it. They’re either laundering money, or they’ve discovered a way to extract gold from oil.

 

What corporations refer to as “slippage.”

They are counting on most of their customers to have the same attitude that I do, and only have to follow through a small percentage of the sales that they do.

A similar thing happened in the U.K. some years back with a Company that sold Vacuum cleaners. They had a promotion for complimentary tickets to the USA with the purchase of a vacuum. The tickets ended up being almost 2x the value of the vacuum by the time the promotion was over, and it put the company out of business.


Needless to say, If everyone with $700 worth of brake rotors on the front of their car bought their parts through FCP and then replaced them at the same time, FCP would likely stop doing the warranty or the parts would become “backordered.”

 

Ya only thing not included is additives as you can't really recover them and put them in the bottle, I have not paid for an oil change in about 5 or 6 years, just buy the same kit each year for each car (or sometimes 2x in a year) put the oil back in the bottles, filter in a ziplock throw in the o rings and copper washer and get all my money back, usually costs 18 bucks to ship it back, so all my oil changes after the original one are about 18 bucks all in and saves me a trip to get rid of the used oil. I have had them replace axles, brakes, water pumps you name it - even brakes when contaminated with axle grease when an axle failed, they don't care the reason, you can replace it because it got rusty on the hats, no questions asked.

 

Machinist is dead on. They are expecting folks to be lazy and not actually send parts back.

The other factor is the warranty doesn’t transfer owners if the car is sold. Most people don’t keep cars more than about 5 years and likely won’t have most parts fail or wear out over that time.

 

They definitely are not the cheapest, their prices are decent but you can spend less, so definitely depends on how long you keep a car on some of the bigger ticket items and if they will wear out again. Things like cams you can find for quite a bit less, so maybe not worth it but great for oil, seals, things that wear fairly quickly. Would be interesting to see who can be bothered or remembers years later if they need to replace it again.

 

^^I usually keep cars for a long time.

I should change my attitude for stuff like this, and not look a gift horse in the mouth.

 

Wait a minute..... Lazy?! I resemble that!!!