No need to apologise.
Apart from the r171 SLK350, slk200's (1.8K - quite a lot of them produced), equipped with the sports package, share the same 330x28 brake/calipers combination.
Earlier in the production line, these calipers were 4 pot ones, and were replaced by lighter 2pot ones (still very heavy compared to decent alyminium ones)
I presume your car has these 2piston brembo-sourced calipers like mine.
Such calipers/brake disks were also used with the w203 c-class 230k cars and may have been used by others that I do not know of. [W211 (E Series), W219 (CLS), and W220 (S Series) are probable]
The choice of pads is limited, with the two major sports pad manufacturers Ferodo and pagid not offering anything in their "better than oem" pads lines. It would be easy for them to manufacture such pads, since they already manufacture pads for considerably lower-volume cars than the slk.
Have a look at the ferodo catalogue and look at the list of low-volume,obscure cars they produce sports pads for,but no slk
I have searched quite a lot and could not really find a very good solution for a better pad.
I personally do not want to change my 17inch wheels for something bigger , so new ap brake calipers (lighter by themselves and having a much better selection in performance pads) need quite some re-engineering.
If you want to go that route I can give you some pointers. I know that with larger wheels so called AMG brakes fit, but for their cost one can have an AP setup, which I prefer and used in various cars.
This is the outline of the OEM pad we are talking about.The outline of the pad is of course determined by the caliper installed
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Sorry for the long answer but there is no substantialy better performance pad for our cars at the moment in my opinion.... Porterfield is decent but nothing to get excited about compared to the OEM one, and according to my experience (albeit in a heavier MB car).
I may well use them in my slk or convert some ferodo ds2500 (Ferodo frp3067 are the nearest in profile to our pads) to fit my calipers, something I have not decided yet. I am currently running oem pads after I destroyed a set of front 330x28 disks using EBC red stuff
I didn't state my question very well, did I. I apologize.
It appears from your posts that SLKs share brakes with more than one other M-B car. I would like to know which. Given the small volume of SLKs sold; it might be easier to find replacement brake components using another model car as a point of reference. Thanks again.