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Being the multivalve piston technology leader
this component replaces restrictive OEM designs with superior flow characteristics and reliability
optimized dome architecture
The distinctive dual-outlet configuration provides both visual impact and enhanced exhaust scavenging
Supertech Valve Spring & Retainer Kit for Honda D-Series Supertech:Default Title Being the multivalve piston technologyEngineered for high revving D Series engines, this Supertech valve spring and retainer kit delivers the precision valve control needed for aggressive cam profiles and elevated RPM applications. Premium materials and tight tolerances ensure consistent performance and durability under extreme conditions. Direct bolt on fitment eliminates guesswork, making it an essential upgrade for serious Honda tuners pushing their engines to the limit.
