these valve springs are built to handle engine speeds of up to 11

Aggressive driving results in increased engine temperatures necessitating an effective solution for keeping your straight six cool

Clutch Diameter: 7

OEM Part Number: 17 21 2 284 540

Capable of handling up to 8500 RPM

BMW B46 Forged Rod & Piston Kit Connecting Rods:Carrillo these valve springs are builtTake the guesswork out of your BMW B46 engine build with a precision matched forged piston and rod combo. Designed specifically for the turbocharged 2. 0L B46 engine, this package includes CP or CP x 5150 Pro Xtreme forged pistons and your choice of Manley, Carrillo, or Carrillo Pro Xtreme connecting rods. Whether you're building for reliable street power, aggressive track performance, or all out racing, this combo delivers the strength and