High quality 3-layer material conrod bearing set Rod Bearing Set Audi S2 / RS2 - STD High quality 3-layer material conrod bearing set For High Performance Audi 5-cylinder 20V Turbo 3B / AAN / ABY / ADU engines For Standard size crankshaft / rod diameters ACL bearings are special 3-material bearing shells (in contrast to the OE series with 2-material) and are ideal for performance engines. Due to the special coating, these bearings have a runflat feature, so even if lubrication is no longer guaranteed for a fraction, the coating prevents the crankshaft from being damaged. Suitable for: Audi 200 20V Turbo Audi 80 S2 Sedan Audi 80 S2 Avant Audi RS2 Avant Audi 80 Coupe Quattro 20V Turbo All with engine codes 3B / AAN / ABY / ADU