Supertech VW 1.8T 20V 82mm (+1) CH 32.7mm -4cc Dish 9.3:1 CR Piston - Single (Excl Rings)

Supertech forged pistons are the result of over 40 years of engineering excellence and advanced manufacturing. Designed using the latest CAD and Finite Element Analysis (FEA) software, every piston is optimized for strength, balance, and reliability in both naturally aspirated and high-boost turbocharged engines. Each Supertech piston is forged from high-silicone 4032 aluminum alloy, providing exceptional wear resistance and thermal stability for street and endurance builds. Supertech uses a multi-stage forging process that aligns material grain with stress paths, maximizing tensile strength and durability. Each piston undergoes precision CNC machining to ensure perfect dimensional accuracy and balance. Phosphate Dry Lubricant Coating protects ring grooves and skirts from micro-welding and reduces friction. Contact Reduction Grooves enhance lubrication between the piston and cylinder wall. Diamond-Tool Machining ensures ultra-flat ring grooves and consistent sealing. These pistons offer excellent wear resistance and thermal conductivity for long service life, superior strength under high boost and race-level conditions, reduced piston-to-wall clearance for quieter operation and tighter sealing, and optimized skirt profiles for lower friction and smoother operation. They are available for naturally aspirated, turbocharged, and nitrous-assisted engines. Each set includes high-strength chrome-moly wrist pins and premium Japanese-manufactured piston rings for complete performance assurance. (Note: The product title from NGP Racing states "Excl Rings", so rings are *not* included despite the generic description mentioning them.)