HKS BCD Piston + Conrod Kit (G16E HC-TT Step 3) - Toyota GR Corolla 2023+

■Billet Piston Kit Bore: Φ87.5 / Weight: 352g

• To enhance knock resistance and achieve higher compression ration, we have adopted HKS's unique "Triple Tumble" crown structure. (Triple Tumble crown structure)
• The piston crown's design creates a third tumble flow on the intake side as the piston moves upward. This quickly spreads the flame near the edge of the intake side, which helps prevent engine knock.
• High-temperature-resistant A2618 material and precision machining combine to deliver significant weight.
• "Bridge Concept Design" (BCD) structure enhances structural rigidity and contributes to weight reduction.
• Three oil jets deliver cooling oil precisely for effective cooling.
• Nickel plating above the top ring groove improves knock resistance and wear resistance.
• A two-layer coating enhances anti-seizure properties and reduces friction.
• Original shortening piston pin design reduces the weight of the piston pin boss section.
• Titanium coating on the top ring enhances durability.
• Precisely machined edges prevent heat spots.

■Billet I-beam connecting rod

• Features machined nickel-chrome steel I-beam connecting rods. 25% stronger than the stock components.
• Compatible with Φ24 piston pins.
• Surface is finished with a WPC treatment to increase fatigue strength.