HKS BCD Piston Kit G16E 1.75L L-Comp S3 D88 (21003-AT008)

A capacity upgrade kit for G16E-GTS has been newly added. Boost pressure can be built up from low rotation speeds even with large-capacity turbines. Application Toyota GR COROLLA (2023, 2024, 2025) Features PistonHigh temperature resistance A2618 material is used for thinner wall thickness and lighter weight.The billet processing reduces waste parts and achieves the lightest weight possible.The bridge-shaped structure increases the rigidity and allows weight reduction.Leads the cooling improves anti-sealing and reduces friction.Shortening the piston pin reduces the weight of the piston pin boss section.Dedicated pins with appropriate wall thickness are set to reduce weight.TOP RING improves durability by titanium coating Connecting RodUses machined nickel chrome alloy I-bean connecting rods.25% stronger than the stock product.Compatible with a dia. 24mm piston pin.The surface is finished with a PVC treatment to improve durability. CrankshaftChrome steel-made full counter crankshaftInertia weight has been reduced by efficient counterweight placement and lighter pin parts.The balancer shaft was removed to improved response.50% of the balance rate suppresses the vibrations unique to a three-cylinder engine. Specifications