HKS 2.1L FA20 Stroker Replacement Crank Shaft 2013-2021 BRZ / 2013-2016 FRS / 2017-2021 86

Here, you are looking at the HKS 2.1L FA20 Stroker Kit Replacement Crankshaft for the 2013-2021 BRZ/ FRS/86. 

This kit is only to be used as a replacement for the pistons found in the 21004-AT002 / 21004-AT003 / 21004-AT004 stroker kits and is not suitable for use with Pistons/rods outside of these HKS 2.1L Capacity upgrades.

• HKS Forged Crankshaft 

• Perfect Pin Journal size was selected by meticulous analysis and experiment with the extended stroke

• Carefully designed weights balance the engine for maximum efficiency 

Stock Bore Compatibility: 

• To maintain block strength, this kit retains the factory 86mm piston bore

• No need for boring, honing, or sleeves makes this a cost-effective install