HKS LEGAMAX Sports Cat-Back Exhaust System (31021-AH005) - Honda Civic Type R FL5 K20C

HKS LEGAMAX Sports Cat-Back Exhaust System (31021-AH005) - Honda Civic Type R FL5 K20C

RM7,500.00 MYR
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HKS LEGAMAX Sports Cat-Back Exhaust System (31021-AH005) - Honda Civic Type R FL5 K20C

Item: HKS LEGAMAX Sports Exhaust System
SKU / Part Number: 31021-AH005
Brand: HKS Japan
Vehicle Fitment: 2023+ Honda Civic Type R (6BA-FL5)
Engine Code Compatibility: K20C (2.0L VTEC Inline-4 Turbocharged)
Exhaust Type: Cat-Back Performance System
Silencer Design: Valveless Straight-Through Sports Configuration
Exhaust Tip Style: Dual 119mm Burnt Titanium Tips (Titan Style with Engraved HKS Logo)

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DIMENSIONAL & MATERIAL SPECIFICATIONS
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* Main Pipe Diameter: Φ74.7mm -> Split to Φ60.5mm x 2 Pipes
* Exhaust Tip Diameter: Φ119mm x 2 Outlets
* Construction Material: High-Grade SU304 / SU409 Stainless Steel Hybrid

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ACOUSTIC & PRESSURE DATA VALUES
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* Exhaust Back-Pressure Reduction: Approx. 30% Less Than OEM Stock Exhaust
* Idling Sound Profile: 73dB (HKS) vs 59dB (OEM Stock)
* Close Proximity Sound Limit: 93dB (HKS) vs 84dB (OEM Stock)

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COMPLIANCE & INSTALLATION NOTES
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* Error-Code Mitigation: Includes dedicated actuator link adapter bracket for the factory OEM valve motor
* ECU Note: Fully compatible with Stock ECU; unlocking maximum performance gains is achieved with ECU remapping
* Factory Certification: JQR Certified / Japan Street Legal Status Compliant

HKS LEGAMAX Sports Cat-Back Exhaust System (31021-AH005) - Honda Civic Type R FL5 K20C

RM7,500.00 MYR
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Slash exhaust back-pressure by 30% over the factory system by utilizing HKS’s high-efficiency, full-straight 74.7mm to dual 60.5mm main piping layout. Engineered purposefully to bypass restrictive flow paths, this valveless exhaust maximizes your turbocharger’s spool velocity and high-RPM power potential. It functions as a vital hardware platform upgrade for modified K20C1 powerplants looking to exploit custom ECU remapping and larger downpipes safely.
Prevent annoying engine check lights and error codes completely via the specialized valveless bypass simulator system included in the package. HKS provides a dedicated physical actuator plate that connects directly to your factory electric exhaust valve motor to trick the ECU seamlessly. This highly technical integration allows you to enjoy an unrestrictive, raw exhaust passage without sacrificing dashboard diagnostics or forcing mechanical faults.
Experience a crystal-clear, aggressive sports exhaust note topped off visually by stunning dual 119mm burnt-titanium exhaust tips engraved with the iconic HKS logo. The system increases sound resonance from the quiet factory 84dB up to a rich, commanding 93dB at high frequencies, all while entirely mitigating painful highway cabin drone. Built securely from premium, corrosion-resistant S304/S409 stainless steel blends, it ensures lifetime structural durability for extreme track abuse and daily driving comfort

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