BMW M2 M3 M4 3.0 24V Single & Twin Turbo N55 S55 84mm Wossner Forged Pistons Set

£1,395.00
Unit price per

Tax included.

Compression Ratio:

N55: 11.5:1

S55: 10:1

84mm K9506DA-6 Bore Size

Compression Height: 32.5mm

Stroke: 86.9mm

Engine: N55B30 & S55B30 2011-2017

You are buying a full set of 6 Pistons with Rings, Gudgeon pins & Circlips.

PLEASE CONTACT US FOR SIZE AVAILABILITY / DELIVERY TIME FRAME

Wössner are regarded by Europe’s leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress’s of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent “hot spots” on piston crowns. Price includes all piston rings and gudgeon pins.