KD6179 RS-652 Front Brake Pads - BMW M4 / M2

Barbaro Racing KD6179 RS-652 front brake pads for BMW M4 / M2 / 4 Series / 3 Series / 1 Series / 2 Series / M3 / I8 and BMW M Performance 4-piston calipers. RS-652 is Barbaro's extreme hybrid race compound for steel and carbon-ceramic rotors (50–800°C, μ 0.49–0.57 on steel). Pad shape KD6179: 112.3 × 91.5 × 16.9 mm; interchanges with FMSI D1880, TRW GDB2031, Brembo P06088N.

Specifications

Barbaro part number	KD6179
Compound	RS-652
Barbaro factory code (SKU)	D61795N5
Axle	Front
Dimensions (L × H × T)	112.3 × 91.5 × 16.9 mm
Friction material height	72.4 mm
Supplied as	One axle set
Pad features	M Performance 4-piston caliper
Also available for KD6179	KD6179 C-01 Premium Street, KD6179 S-01 Street & Track

Caliper fitment

Caliper brand	Caliper	Details
BMW M Performance	4-piston

Vehicle fitment

Make	Model	Chassis	Years	Engine / variant	Notes
BMW	1 Series	F20, F21	2010–	M135i, 3.0T, M140i, 114 d, 114 i, 116 d, 116 i, 118 d, 118 d xDrive, 118 i …	Brembo calipers
BMW	2 Series	F22, F87, F23	2013–	M235i, 3.0T, M240i, 218 d, 218 i, 220 d, 220 d xDrive, 220 i, 225 d, 228 i …	Brembo calipers
BMW	3 Series	F30, F35, F80, F31, F34	2011–	330i, 2.0T, 335i xDrive, 3.0T, 340i xDrive, ActiveHybrid 3, 3.0T hybrid, 316 d, 316 i, 318 d …	Brembo calipers
BMW	3 Series GT	F34	2012–	GT330d, 3.0TDI diesel, GT335i xDrive, 3.0T, GT335i
BMW	4 Series	F33, F32, F36, F82, F83	2013–	428i, 2.0T, 435i xDrive, 3.0T, 435i, 440i xDrive, 440i, 418 d, 420 d, 420 d xDrive …	Brembo calipers
BMW	I8	I12	2014–	hybrid, 1.5 hybrid (B38K15A)	Brembo calipers
BMW	M2	F87	2015–	M2, 3.0T, M Performance 4-piston caliper
BMW	M3	F80	2013–	M3, 3.0T
BMW	M4	F82, F83	2013–	M4 CS, 3.0T, M4 GTS, M4, M Performance 4-piston caliper
BMW	3 Series (China · BMW Brilliance)	F35	2012–	335Li, 3.0T

Fitment is compiled from the Barbaro Racing application catalogue and Barbaro factory data, together with the vehicle listings of the interchange part numbers below. Brake packages can differ within one model — please compare your current pads with the dimensions and drawing, or send us your VIN, before ordering.

Cross-reference / interchange numbers

FMSI	D1880, D1609, D1609-8822, D1609-8991, D1880-8822
TRW	GDB2031, GDB1943
Brembo	P06088N, P06088
Textar	2502801
Mintex	MDB3259
Jurid	573355JC, 573355J
Hella Pagid	355021271, 8DB355021271
Icer	182093
WVA	25028
OE BMW	34106799805, 34106859067, 34106866072, 34116850850, 34116859066, 34116866072, 34112284969

Interchange numbers identify the matching pad shape. Friction material, shims and wear-sensor hardware can differ between brands.

About the RS-652 compound

RS-652 · The extreme hybrid

Seven years in the making. Endurance and sprint on both carbon-ceramic and steel rotors with zero fall-off, protected by a self-renewing 1–3 micron transfer film. Average friction 0.555 μ — measured beyond PAGID RSL1 (0.510) and Endless MA45B (0.438).

Temperature range: 50–800°C
Friction: μ 0.49–0.57 (steel); rising with temperature on CCB
Discs: Steel + carbon-ceramic
Lock threshold: 95 bar (RS-635: 65 bar)
+46.1% lock threshold — 95 bar vs 65 bar
On CCB, friction rises with temperature — 0.689 μ at 800°C
Disc wear 0.001 mm — 1/9 of RSL1, 1/18 of MA45B
Ideal for: TCR, GT and touring-car racing on steel or carbon-ceramic discs

RS-652 full specifications on barbaro-racing.com

About Barbaro Racing

Barbaro Racing (野蛮人) is the performance brand of the CAC Racing Division — proprietary compounds developed entirely in-house. Development begins on the dynamometer and ends on the circuit: every friction formula is bench-tested to destruction before earning the right to carry the Barbaro name. All compounds are validated against GB5763-2018 national standards; Street Series compounds are asbestos-free.