Overview
HKS Low Compression Piston Kit 21003-AT004 for Subaru BRZ FA20 (2013-2020)
Ready to take your Subaru BRZ’s performance to the next level? The HKS Low Compression Piston Kit (21003-AT004) is engineered specifically for the FA20 engine, making it the perfect upgrade for enthusiasts looking to enhance their tuning capabilities. This kit is designed for high boost applications, allowing you to maximize your engine’s potential.
Key Features
- Pistons:
- Durable forged material ensures longevity and reliability.
- Innovative cavity design on the piston head optimizes fuel atomization during injection.
- 3D piston crown design promotes efficient tumble flow for better combustion.
- Recessed design compatible with high lift HKS camshafts.
- Adjustable compression ratio range based on gasket thickness.
- Molybdenum coating minimizes friction for smoother operation.
- Connecting Rods:
- Cracked con rods tailored for longer stroke applications.
- Special size crank pins eliminate the need for engine modifications.
- Nissan genuine bearings for RB26 and SR must be purchased separately.
- High-strength I-beam design with upgraded connecting rod bolt size.
- Crankshaft Stroke:
- 90.0MM stroke crafted from HKS’s unique forged materials.
- Precision-selected pin journal size for optimal performance.
- Carefully balanced weights enhance engine efficiency.
- Stock Bore Compatibility:
- Maintains a bore size of 86.0mm to preserve engine block integrity.
- Cost-effective solution—no need for boring, honing, or additional parts like cylinder liners.
Fitment
This kit is compatible with:
- Subaru BRZ FA20 (2013-2020)
Customer Feedback
Owners of the Subaru BRZ have praised the HKS 21003-AT004 kit for its ability to significantly boost performance without compromising reliability. Many users have reported smoother acceleration and improved throttle response, making it a popular choice among tuners. The straightforward installation process and compatibility with existing components have also been highlighted, making it a seamless upgrade for those looking to push their FA20 engine to new heights.
Other Part Numbers:
HKS #hks21003-AT004
Proposition 65
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
Fitment
|
Make Vehicle |
Model | Year |
|---|---|---|
|
2013-2020 Subaru BRZ |
BRZ | 2013-2020 |
About Brand
Since its beginning, HKS has been committed to providing well-integrated, reliable,and environmentally sound performance systems. Mr. Hasegawa’s strong leadership, engineering genius, creativity and willingness to listen to customers are the pillars of the company’s success. Monitoring consumer reaction and input on issues pertaining to material quality, external appearance, sound quality, and of course, performance, HKS stays in tune with automotive enthusiasts’ needs. Moreover, HKS’ products are designed to be user friendly for easy installation.
Warranty
Warranty for Exhaust System
HKS provides a warranty to the original purchaser of HKS exhaust systems against defects in materials and workmanship for a period of one year. The warranty applies only for vehicle specific exhaust systems. Other products such as metal catalyzers, front pipes, exhaust manifolds, and center pipes are not covered.
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