ApplicationCompatible for Audi B5 S4 quattro 2.7TCompatible for Audi A4 A6 V6 Engines 2.6L, 2.7 T 30V, 2.8L 12VDimensionsCenter to center length: 154mmBig end diameter: 57.6mmSmall end diameter: 21mmBig end width: 20.15mmSmall end width: 20.95mmSpecificationPerformance Con RodsType: Forged 4340 aircraft chrome moly quality steel for racingPower: 600hp ~ 800hp per setQuantity: 6 Pieces a set as showing in pictureBolts: Including Genuine 5/16\" ARP 2000 bolts (Note: Extra cost for upgrading to ARP L19 bolts)Top acceleration: 9000rpmWeight Tolerance: Balanced to +/- 1 gram in setNote- Please Carefully check the Size of the Rods in Specific and Description.- Professional installation is highly recommended (No Instruction Included)- For any needs please contact us