This section doesn’t currently include any content. Add content to this section using the sidebar.

Image caption appears here

Add your deal, information or promotional text


Audi RS4 2.7 V6 BI-Turbo Wossner Forged Piston Kit

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.

Part Number K9215
Engine Type AZR, ASJ, AZF
OE Bore Size 81.00mm
Bore Sizes Available

81.50mm - 2704.39cc

82.00mm - 2737.68cc

Stroke 86.4mm
Dome/Bowl Volume -15cc
Wössner Comp. Ratio 8.0:1
OE Comp. Ratio 9.0:1
Comp. Height 30.7mm
Valves Per Cylinder 5
Cylinders 6