CP-Carrillo CPT14-061521G Forged Piston & Ring Set Mitsubishi 4B11 Evo X 89.5mm Bore 8.8 CR

The CP-Carrillo CPT14-061521G is a high-performance forged piston and ring set engineered for the Mitsubishi 4B11 engine found in the Lancer Evolution X. This set is purpose-built for engine builders seeking maximum strength and reliability in high-boost, high-power applications, delivering a 89.5mm bore diameter, a +4.0mm oversize, and an 8.8:1 compression ratio—ideal for forced-induction builds that require lower compression to handle elevated boost pressures safely.

Key Specifications:

• Engine Application: Mitsubishi 4B11 (Lancer Evolution X)
• Bore Size: 89.5mm
• Oversize: +4.0mm
• Compression Ratio: 8.8:1
• Construction: Forged aluminum alloy
• Manufacturer: CP-Carrillo — Made in the USA

Key Features:

• Forged construction provides superior strength and fatigue resistance over cast pistons
• Designed for high-boost and high-horsepower turbocharged 4B11 builds
• Lower 8.8:1 compression ratio accommodates aggressive boost levels
• Manufactured at CP-Carrillo's Irvine, California facility using advanced CNC machining
• Each kit includes matched pistons and ring sets for a complete, precision assembly
• Engineered and tested in conjunction with top-level racing programs

CP-Carrillo has been a trusted name in performance engine components since 1961, producing pistons and connecting rods used in professional racing and high-performance street builds worldwide. All CP-Carrillo products are manufactured in the USA to strict quality standards. Note: This product is not CARB-approved and is not legal for sale or use in California.