I have 2 full sets of these brake pads for the front axle of all e36 M3's.
They were both used for about 150 street miles only. These are just released new compound pads for heavy street/track use. I used the original version of these pads for daily driving and heavy autocross and track days, and liked them a lot. The new version performs even better, but due to higher noise (really loud) and dust, I could not use them for street anymore. More info can be found at www.cobaltfriction.com, see below for specs from their website.

One set does not have the piston retaining clips on the back of the pad. Makes it easier to change them out at the track. Both sets are about 99.85% full life left. Asking $75 shipped!
PM or email at badook@pol.net

Applications: Prototypes, GT Sports Car, Open Wheel/Formula Cars

Description: Cobalt GT-Sport is a class-winning autocross compound exhibiting very good cold performance, strong/solid initial bite, linear pedal feel with excellent modulation, and high fade resistance. Along with its excellent performance, the GT-Sport compound is rotor friendly and has very good wear rates over a broad operating temperature range. For the serious autocross driver, the GT-Sport will let you take back the time under braking! Also suitable for spirited street driving (i.e. canyon and mountain drives, etc.) and novice to intermediate level HPDE events.

Cobalt GT-SPORT Dynamometer Graphs (coming soon!)
Technical Specifications: GTS

Temp Range - 50F - 1200F
Torque Curve - High

General Application - Club Racing, Autocross, RallyCross, HPDE
Professional Series Applications - N/A

Racing Type - Touring Car, Rally Car (Tarmac & Gravel)
Road Conditions - High to Low Grip Tarmac (Circuit), Gravel, DirtInitial Bite - Strong, Modulation and Release - Excellent
Pad Life - Sprint/Endurance Production - OEM Fitments and Race Fitments