BMW B46 Forged Rod & Piston Kit

Take 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 reliability your build demands.

Engineered to handle the stress of high RPM, boost, and demanding conditions, every combination in this kit is used by professional engine builders and performance shops worldwide. Perfect for BMW 1 Series, 2 Series, 3 Series, 4 Series, and X1 models equipped with the B46 engine.

Piston Options

CP Pistons

• Rated: Up to 800 HP
• Best For: Street builds, track day setups, moderate boost
• Description: These forged pistons are ideal for street-driven builds looking for added durability and increased power while maintaining OEM-like reliability.

CP Pro-Xtreme Pistons

• Rated: Up to 1,200 HP
• Best For: Drag racing, high-boost competition builds
• Description: Built for maximum cylinder pressure and thermal resistance, Pro-Xtreme pistons are made for serious race applications and extreme forced induction.

Rod Options

Manley Connecting Rods

• Rated: Up to 750 HP
• Best For: Budget-conscious builds and daily use
• Description: A cost-effective solution with proven performance, Manley rods are great for reliable power in street applications under moderate boost.

Carrillo Connecting Rods

• Rated: Up to 800 HP
• Best For: Track and street builds with higher power goals
• Description: Known for exceptional balance, strength, and quality, Carrillo rods are trusted for mid-to-high-power B46 engine builds.

Carrillo Pro-Xtreme Connecting Rods

• Rated: Up to 1,200 HP
• Best For: Maximum horsepower, drag racing, and high-RPM abuse
• Description: The strongest option in this lineup, Pro-Xtreme rods are purpose-built for extreme performance under intense loads and prolonged high-RPM use.