Cpe Stage2 Pistons 10.5:1 compression

COMPRESSION RATIO - 10.5:1.  Available in stock 87.5mm bore or 88mm bore.

Custom Performance Engineering continues its MZR DISI development and pushing the limits of technology.  We are proud to introduce the MagnumDI™ Stage 2 pistons.

Engineered with performance and strength in mind specifically for the Mazda MZR 2.3 DISI motor these Stage 2 pistons will hold up to almost anything. Made using a state-of-the-art forging process with extensive heat treating and special finishing, cp-e™  ensures optimum reliability which is exactly what is needed in a high performance engine.

Precision CNC machined to cp-e™ spec, Stage 2 pistons have specifically designed valve pockets and a dome with unique features to optimize fuel distribution within the cylinder. The extra pocket in the dome design sends fuel up towards the spark plug, optimizing the mix with oxygen and in turn making the burn process more efficient.

The pistons are machined with a special cam and barrel design helping with piston positioning within the cylinder and its movement with stress and heat, also reducing the noise, commonly acquired with forged internals. They are also coated for reduced friction and noise and to promote oil lubrication