HKS

HKS BCD Piston Kit - G16E 1.75L HC-TT Step 3 (88mm) - Toyota GR Corolla 2023+ / GR Yaris (HKS21003-AT010)

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  • $3,412.99 CAD
  • Regular price $3,590.99 CAD
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These 88mm forged Triple Tumble pistons are the high-compression piece for a 1.75L G16E stroker build. The signature crown adds a third intake-side tumble flow to fight knock and support higher compression, while A2618 alloy and a bridge-structure body keep the piston light and rigid. Supplied as a piston kit with rings and pins to pair with HKS's stroker crank and rods.

Details: Forged A2618 BCD 'Triple Tumble' high-compression pistons; Bore 88.0mm (for 1.75L/1,746cc stroker builds); 352g per piston; Nickel plating above top ring; titanium-coated top ring; Three piston cooling oil jets; For 24mm piston pin

Fitment: 2023+ Toyota GR Corolla (GZEA14H) and GR Yaris (GXPA16), G16E-GTS — Shared G16E-GTS engine internal. Oversize 88mm bore for 1.75L stroker builds - requires matching HKS crank/rods and professional machining/assembly.

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