Will 09 SL63 calipers bolt on a 09 SL550? - Mercedes-Benz Forum
 
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post #1 of 4 (permalink) Old 08-19-2016, 03:40 AM Thread Starter
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Will 09 SL63 calipers bolt on a 09 SL550?

Will they (and rotors) bolt right up? or do I need brackets of some sort?
or is it even worthwhile?

Thanks in advance!
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post #2 of 4 (permalink) Old 08-19-2016, 05:50 AM Thread Starter
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Noone knows

A Lexus is so easy.... I directly bolted on TTsupra calipers (the best stopping car for 3-4 years running) with nearly ZERO modifications...

was hoping this would be as easy.
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post #3 of 4 (permalink) Old 08-19-2016, 08:57 AM
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Originally Posted by redrum448 View Post
Will they (and rotors) bolt right up? or do I need brackets of some sort?
or is it even worthwhile?

Thanks in advance!
Not sure what you are trying to gain over the stock SL550 brakes for everyday driving. Are you planning on racing your car on the weekends?

Anyway, I did a quick parts search and it appears that the steering knuckles are the same so parts should be interchangeable to go to the bigger SL63 brakes on the front. See attachments. Not sure of plumbing,electrical etc but I would expect it to be a bolt on change just way more $'s.

Bob
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File Type: pdf Steering Knuckle '09 Sl63.pdf (110.5 KB, 31 views)
File Type: pdf Steering Knuckle '09 Sl550.pdf (111.7 KB, 35 views)
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post #4 of 4 (permalink) Old 08-19-2016, 09:07 AM
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Parts are interchangeable,

but running cost of floating rotors are relatively astronomical, compared to fixed rotor of pre 2007 SL55 for examople

I highly propose SL55 2003-2006 8piston brakes, they have enough braking torque to pop your eyes out of their sockets, they are more than enough for stock SL550 power, and without having to spend $3000 on parts alone for your next brake job.

Even for look and visual size of rotor and calipers (more than 99% of reasons to upgrade) they are actually better looking than the later 6 piston system.

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Last edited by bayhas; 08-19-2016 at 09:09 AM.
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