Carrillo M2003 High-Performance Piston Kit Compression Engine Connecting Rod - 85mm 11.0 1

The Carrillo M2003 is a high-performance piston kit engineered for Honda TRX400EX (1996-2016) and XR400 (1996-2009) applications. This precision-crafted piston features an 85mm standard bore diameter with an 11.0:1 compression ratio, delivering 397cc of displacement for enhanced power and throttle response.

Key Features:

• 85mm standard bore diameter with 11.0:1 compression ratio
• Project X Pro Piston technology with advanced pin bore treatment
• Proprietary pin bore machining process reduces stress and allows pin flex
• Manufactured using refined processes developed with high-end OE companies
• Significantly increased durability in the high-stress pin bore area
• Precision CNC-machined to exacting tolerances
• Compatible with Honda TRX400EX and XR400 models

CP-Carrillo's Project X Pro Pistons incorporate advanced manufacturing techniques that have been researched, developed, and tested for years with top-tier OE manufacturers. The specialized pin bore treatment process eliminates traditional honing in favor of precision machining that creates optimized internal geometries, reducing stress concentrations while allowing the wrist pin to flex naturally during operation. This technology, once reserved for professional racing applications, delivers exceptional reliability and performance for demanding powersports applications.