Engineered for high-performance Ford and Mazda Duratec applications, the Supertech SPRK-TS-DUR-DS single valve spring kit provides the necessary tension to maintain valvetrain stability at high RPM. By increasing seat pressure to 55 lbs at a 35.0mm install height, these springs effectively eliminate valve float, ensuring precise valve timing during aggressive camshaft operation or increased boost levels.

Each spring is manufactured from premium chrome silicon steel for exceptional fatigue resistance and long-term durability under extreme racing conditions. This kit is designed to replace factory components, offering a significant upgrade for street and track builds alike.

• Manufacturer Part Number: SPRK-TS-DUR-DS
• Fitment: Ford / Mazda Duratec Engines
• Spring Configuration: Single Valve Spring
• Seat Pressure: 55 lbs @ 35.00mm
• Material: High-Tensile Chrome Silicon Steel

Fits 2002-2007 Mini Cooper R53 (1.6L).

This set of 16 Supertech beehive valve springs is engineered to improve valvetrain stability and harmonics in the 1.6L engine. The beehive design utilizes a smaller upper diameter, which reduces the reciprocating mass of the retainer and allows the engine to rev more freely while maintaining better control over valve motion at high RPMs. These springs are an essential upgrade for performance builds where increased lift or higher engine speeds are expected.

• Manufacturer Part Number: SPR-HM1007BE-16
• Spring Type: Beehive
• Quantity: Set of 16
• Application: Mini Cooper R53 (W11 Engine)
• Compatible Engine: 1.6L

This Supertech valve spring shim (SS-3043) is precision-engineered for professional engine builders who require exact valvetrain tolerances. By providing a stable, flat base for the valve spring, this shim allows for precise adjustment of the installed height, ensuring consistent seat pressure across all cylinders.

Manufactured from high-quality materials to resist wear and fatigue under high-RPM conditions, these shims are essential for correcting head machining variations or achieving specific spring tension requirements. This component is designed to fit over the valve guide while maintaining a secure seat within the spring pocket.

• Manufacturer Part Number: SS-3043
• Outside Diameter (OD): 1.140in
• Inside Diameter (ID): .570in
• Thickness: .030in

Designed for high-performance builds, the Supertech Performance Dual Valve Spring Kit for the Volkswagen VR6 12V engine provides the increased seat pressure and harmonic damping required for high-lift camshafts and high-RPM operation.

This dual-spring configuration helps prevent valve float, ensuring the valvetrain remains stable under extreme conditions. Each kit is engineered to exacting tolerances, replacing the factory single-spring setup with a more robust solution for street, strip, or track applications.

• Engineered for Volkswagen 12V VR6 powerplants
• Dual spring design for improved valvetrain control and harmonic damping
• Essential for high-lift camshaft profiles
• Protects against valve float at high RPMs
• Complete set for the 12-valve cylinder head
• Manufacturer Part Number: SPRK-V2093-4-12

Engineered for high-performance valvetrains, the Supertech SPRK-TS1015-SU5 Dual Valve Spring Kit provides the critical seat pressure and harmonic damping required for high-RPM Subaru EJ25 builds. This dual-spring configuration is specifically designed to prevent valve float, ensuring the valvetrain remains stable and responsive when using aggressive camshaft profiles or high-boost setups.

By utilizing a secondary inner spring, this kit offers superior control over valve motion compared to factory single-spring arrangements. These components are manufactured from high-tensile chrome silicon steel to ensure long-term durability and resistance to fatigue in demanding racing environments.

• Fits Subaru Impreza models equipped with the EJ25 engine.
• Design: Dual valve spring configuration for improved harmonic control.
• Function: Prevents valve float at high engine speeds.
• Material: High-quality chrome silicon steel.
• Manufacturer Part Number: SPRK-TS1015-SU5

Fits Subaru WRX and STi models with 16V EJ-series engines.

The Supertech SPRK-TS1015-SU4 Dual Valve Spring Kit is engineered to provide the valvetrain stability required for high-performance Subaru builds. By utilizing a dual-spring design, this kit effectively dampens harmonics and provides the necessary seat and open pressures to prevent valve float at high RPM or under high-boost conditions. These springs are manufactured from high-tensile chrome silicon steel, heat-treated, and stress-relieved to maintain consistent tension over their service life.

• Prevents valve float and manages valvetrain harmonics at high engine speeds
• Designed to accommodate high-lift camshafts and aggressive ramp rates
• Material: High-tensile chrome silicon steel alloy
• Configuration: 16V Dual Valve Spring Set
• Manufacturer Part Number: SPRK-TS1015-SU4

Engineered for high-performance Subaru WRX and STI 16-valve engines, the Supertech SPRK-TS1015-SU1 dual valve spring kit provides the high-RPM stability required for aggressive cam profiles and increased boost levels. These dual springs are designed to reduce harmonic resonance and prevent valve float, ensuring the valvetrain remains controlled under extreme racing conditions.

This kit replaces factory springs to offer higher seat pressure and greater lift capacity, making it a critical upgrade for builds targeting higher redlines or utilizing aftermarket camshafts. Each component is manufactured to strict tolerances to ensure consistent spring rates across the entire set.

• Part Number: SPRK-TS1015-SU1
• Engine Compatibility: Subaru 16V (EJ-series)
• Spring Type: Dual Valve Spring
• Application: High-performance street and track use
• Designed to prevent valve float at high RPMs

This Supertech Dual Valve Spring Kit is specifically engineered for Nissan RB25 DOHC 24V engines utilizing a solid lifter valvetrain. Designed to maintain valvetrain stability and prevent valve float, this kit is an essential upgrade for high-RPM builds and forced induction applications where factory springs lack the necessary tension to control heavier valves or aggressive cam profiles.

The dual-spring configuration provides increased seat pressure and improved harmonic damping compared to single-spring setups. By optimizing the spring rates for solid lifter conversions, Supertech ensures reliable performance and helps protect your engine components during high-performance driving or competition use.

• Fits Nissan RB25 DOHC 24V engines equipped with solid lifters
• Dual-spring design for superior high-RPM stability and valve control
• Increased seat pressure to prevent valve float under high boost or lift
• Precision-manufactured for consistent spring rates and durability
• Manufacturer Part Number: SPRK-TS1015-RB25

Fits Toyota 2JZ engines.

The Supertech SPRK-TS1015 Dual Valve Spring Kit is a critical valvetrain upgrade for high-performance Toyota 2JZ builds. Engineered to handle the increased demands of aggressive camshaft profiles and high boost pressures, this dual spring kit helps prevent valve float at high RPMs, ensuring consistent timing and valvetrain stability.

• Designed specifically for the Toyota 2JZ platform
• Dual spring configuration provides increased seat pressure and lift capacity over OE
• Reduces the risk of coil bind and valve-to-piston contact in high-lift applications
• Essential for high-revving street, drag, or track engines
• Manufacturer Part Number: SPRK-TS1015

Fits 2005-2015 Ford Focus (2.0L).

The Supertech SPRK-TS-DUR-D2 dual valve spring kit is designed to provide the increased seat pressure and high-RPM stability required for performance engine builds. This kit helps eliminate valve float, a common failure point when introducing aggressive camshaft profiles or increased boost levels in the Focus 2.0L engine. By utilizing a dual-spring design, Supertech ensures a higher natural frequency and improved dampening to maintain precise valvetrain control under extreme racing conditions.

• Prevents valve float at high engine speeds
• Increases valvetrain reliability for forced induction or high-lift cam applications
• Precision-manufactured for consistent spring rates
• Manufacturer Part Number: SPRK-TS-DUR-D2

Ensure valvetrain stability at high RPMs with the Supertech Dual Valve Spring Kit for Ford Duratec and Mazda MZR engines. Designed to support aggressive camshaft profiles and forced induction setups, this kit provides the necessary seat pressure to prevent valve float and maintain precise engine timing during high-performance use.

Engineered for the 2.0L, 2.3L, and 2.5L powerplants, these dual springs offer superior harmonic dampening compared to single-spring configurations. By utilizing a dual-coil architecture, this kit provides an added layer of safety; the secondary spring helps prevent the valve from dropping into the combustion chamber in the event of a primary spring failure.

• Compatible with Ford Duratec and Mazda MZR 2.0L, 2.3L, and 2.5L engines
• Designed for high-lift camshafts and increased redline applications
• Reduces harmonic resonance and improves valvetrain durability
• Manufacturer Part Number: SPRK-TS-DUR-D1

Ensure reliable valvetrain stability and prevent valve float in your high-performance Volkswagen 24-valve VR6 or R32 engine with the Supertech Dual Valve Spring Kit. This kit (MPN: SPRK-TC25D-VR6) is engineered for modified engines running aggressive camshaft profiles or higher RPM limits than the factory configuration.

Each spring is manufactured from high-quality chrome silicon steel to provide consistent seat pressure and long-term fatigue resistance. The included titanium retainers are precision-machined to reduce reciprocating mass compared to OEM steel components, allowing for faster valvetrain response and improved engine harmonics at high speeds.

• Fits Volkswagen 24V VR6 and R32 engines.
• Includes high-performance dual valve springs and lightweight titanium retainers.
• Manufactured from premium chrome silicon steel for durability and heat resistance.
• Designed to support high-lift camshafts and elevated RPM ranges.
• Manufacturer Part Number: SPRK-TC25D-VR6

Enhance your engine's reliability and performance with the Supertech Mazda Miata Single Valve Spring Kit (1.8L). This kit is specifically designed to provide the necessary tension to prevent valve float, making it a critical upgrade for high-RPM builds and forced induction setups.

By replacing factory components with the Supertech SPRK-MM18-S, you ensure more consistent valve control and valvetrain stability under demanding driving conditions. These springs are engineered to handle the increased stresses of performance driving while maintaining the precise tolerances required for the 1.8L Mazda powerplant.

• Fits 1.8L Mazda Miata engines
• Engineered for increased valvetrain stability at higher RPMs
• Provides critical protection against valve float in performance applications
• Direct replacement for OEM valve springs
• Manufacturer Part Number: SPRK-MM18-S

Fits 1.8L Mazda Miata models.

The Supertech Dual Valve Spring Kit is engineered for high-performance builds requiring superior valve train stability and reliability. Designed to replace the factory single springs, this dual-spring configuration provides the necessary seat pressure and tension to eliminate valve float at high RPMs, ensuring your engine remains protected during aggressive driving or when running forced induction and high-lift camshafts.

Constructed from high-tensile chrome silicon steel, these springs offer excellent harmonic damping and durability. This kit is a direct solution for enthusiasts seeking to maximize the volumetric efficiency of the Mazda 1.8L engine without compromising on component longevity.

• Manufacturer Part Number: SPRK-MM18-D
• Engine Compatibility: Mazda 1.8L
• Spring Configuration: Dual Valve Springs
• Material: High-tensile chrome silicon steel
• Applications: High-RPM, forced induction, and performance cam profiles

Protect your valvetrain against valve float during high-RPM operation with the Supertech Dual Valve Spring Kit for the Mazda Miata (1.6L). This kit provides the necessary seat pressure and harmonic damping to maintain precise valve timing in high-performance applications where factory single springs often reach their mechanical limits.

Manufactured from high-tensile chrome silicon steel, these dual springs are designed to handle the increased loads of aggressive camshaft profiles and elevated boost levels. By utilizing a dual-spring architecture, Supertech reduces the risk of spring resonance and provides a critical safety margin should a single spring fail.

• Fits Mazda Miata (1.6L) engines
• Seat Pressure: 70lbs @ 34.2mm installed height
• Dual spring configuration for superior high-rev stability
• High-quality chrome silicon steel construction
• Manufacturer Part Number: SPRK-MM16D-2

Fits Mazda Miata (1.6L).

The Supertech SPRK-MM16-S single valve spring kit is engineered to provide the increased seat pressure and spring rate required for performance valvetrain setups. Designed specifically for the Mazda Miata 1.6L engine, these springs help prevent valve float at higher RPMs and provide the reliability needed for high-revving street or track applications. Whether you are running aftermarket camshafts or building for high-boost durability, these springs ensure precise valve control.

• Engineered for high-RPM stability and valve control
• Prevents valve float in performance and racing applications
• High-quality materials designed for consistent seat pressure
• Compatible with Mazda Miata 1.6L engines
• Manufacturer Part Number: SPRK-MM16-S

Fits Hyundai Veloster 16V models with the G4FJ engine.

The Supertech Beehive Valve Spring Kit is engineered for high-performance Hyundai G4FJ engines where valve train stability is critical. By upgrading to these beehive-style springs, you reduce the reciprocating mass of the valve train, allowing for higher RPM limits and protecting against valve float in high-boost or high-revving applications. Each spring is precision-wound and designed to work within strict tolerances for consistent seat pressure and reliable lift capacity.

• Manufacturer Part Number: SPRK-MC56BE-G4FJ
• Type: Beehive Valve Spring Kit
• Seat Pressure: 75 lbs @ 33.50mm
• Open Pressure: 172 lbs @ 10mm lift
• Coil Bind: 22.20mm
• Application: 16-Valve engines

Fits 2007-2012 Mini Cooper R56 models.

The Supertech SPRK-MC56BE Beehive Valve Spring Kit is engineered to provide superior valvetrain control for high-performance Mini Cooper R56 builds. By utilizing a beehive design, these springs reduce the reciprocating mass at the retainer end, which allows for better harmonic resistance and increased stability at high RPM. This design enables the engine to handle more aggressive camshaft profiles and higher boost levels without the risk of valve float.

Each component is manufactured to exacting tolerances, ensuring consistent spring rates and long-term durability under track or spirited street conditions. This kit is a direct-fit solution for enthusiasts looking to strengthen their valvetrain while maintaining reliable operation.

• Manufacturer Part Number: SPRK-MC56BE
• Spring Type: Beehive design for reduced mass and improved harmonics
• Application: Specifically engineered for the Mini Cooper R56 platform
• Fitment Years: 2007-2012

Fits Nissan RB26DET 24V engines. The Supertech Dual Valve Spring Kit (SPRK-M1007D-RB) is a critical valvetrain upgrade for high-performance builds where high RPM stability and increased lift are required. This dual-spring configuration is engineered to provide superior harmonic damping and the necessary seat pressure to prevent valve float, ensuring your valvetrain remains controlled under extreme boost or high-rev conditions.

• Designed specifically for Nissan RB26DET 24-valve cylinder heads
• Dual-spring design offers increased pressure and harmonic resistance
• High-quality materials wound to precise tolerances for durability
• Essential for engines utilizing high-lift camshafts or high boost levels
• Manufacturer Part Number: SPRK-M1007D-RB

The Supertech SPRK-M1007D dual valve spring kit is engineered for high-performance Mitsubishi 4G63 engines that require increased seat pressure and lift capacity. This kit is a critical valvetrain upgrade for builds featuring aggressive aftermarket camshafts and high-boost configurations where valve float can compromise engine safety and power delivery.

By utilizing a dual-spring design, Supertech provides a higher spring rate and improved harmonic damping compared to factory single-spring setups. This ensures precise valve control at high RPM, allowing for a safer redline and consistent performance under extreme racing conditions. These springs are manufactured from high-quality chrome silicon vanadium steel alloy for maximum durability and fatigue resistance.

• Engineered for the Mitsubishi 4G63 valvetrain
• Dual spring configuration for superior high-RPM stability
• Prevents valve float in high-lift and high-boost applications
• Manufactured from high-tensile chrome silicon vanadium steel
• Manufacturer Part Number: SPRK-M1007D

Fits Nissan Skyline models equipped with the RB25 DOHC 24V (NEO Version) engine.

The Supertech SPRK-M1007BE-RB25N beehive valve spring kit is engineered to provide superior valvetrain stability for high-performance RB25 NEO builds. Unlike traditional cylindrical springs, the beehive design features a reduced top diameter. This allows for the use of smaller, lighter retainers, significantly cutting reciprocating mass. The result is a valvetrain that can handle higher RPMs with improved harmonic resistance and reduced frictional losses.

Designed to withstand the rigors of aggressive camshaft profiles and increased boost levels, this kit is a critical upgrade for any NEO engine undergoing a performance rebuild. It ensures consistent seat pressure and helps prevent valve float at the top of the rev range.

• Manufacturer Part Number: SPRK-M1007BE-RB25N
• Engine Compatibility: Nissan RB25DE / RB25DET NEO (DOHC 24V)
• Spring Style: Beehive for reduced mass and better harmonics
• Application: High-RPM performance and forced induction builds

Optimized for high-RPM reliability, the Supertech SPRK-H200DR Dual Valve Spring Kit is a critical upgrade for Honda B16 and B18C VTEC engines. This kit addresses the limitations of factory valvetrains by providing the increased seat pressure and spring rate required for aggressive camshaft profiles and high-boost applications.

By utilizing a precision-engineered dual-spring design, this kit significantly reduces the risk of valve float and harmonic surge. The included titanium retainers are CNC-machined for an exacting fit and offer a substantial weight reduction over steel components, decreasing reciprocating mass to allow for safer, more responsive engine operation at the redline.

• Vehicle Fitment: Fits Honda B16 and B18C VTEC engines.
• Spring Configuration: High-performance dual valve springs for increased seat pressure.
• Retainer Material: Lightweight, high-strength Grade 5 Titanium.
• Key Function: Prevents valve float and ensures valvetrain stability during high-lift or high-RPM operation.
• Manufacturer Part Number: SPRK-H200DR

Fits Honda F20 and K20A2 engines.

The Supertech SPRK-H1022D Dual Valve Spring Kit is engineered to provide the valvetrain stability required for high-performance Honda engines. By utilizing a dual-spring design, this kit offers increased spring pressure and a higher natural frequency to prevent valve float and bounce at high RPMs, which is critical for engines running aggressive aftermarket camshafts or increased redline limits.

Each component is manufactured to exacting tolerances to ensure consistent seat pressure and reliable performance under extreme thermal and mechanical stress. This kit replaces the factory springs to provide the necessary control for high-lift applications while maintaining the integrity of the valvetrain assembly.

• Engineered specifically for Honda F20 and K20A2 engine platforms
• Dual-spring configuration for superior harmonic damping and RPM capability
• Helps prevent catastrophic engine damage caused by valve float
• Manufacturer Part Number: SPRK-H1022D

Fits Nissan SR20DET engines.

The Supertech Single Valve Spring Kit (SPRK-H1021S-SR20) is engineered to provide the increased seat pressure and spring rates necessary for high-performance valvetrain stability. Designed to prevent valve float during high-RPM operation, these springs are essential for builds utilizing aftermarket camshafts or increased boost levels where factory components cannot maintain control.

Each spring is manufactured from high-quality chrome silicon vanadium steel alloy for maximum durability and resistance to fatigue. This kit ensures reliable valvetrain geometry and timing accuracy by maintaining consistent pressure under extreme thermal and mechanical stress, protecting your engine from potential valve-to-piston contact.

• Engineered specifically for Nissan SR20DET engine applications
• High-tensile chrome silicon vanadium steel construction
• Designed to prevent valve float at higher RPM ranges
• Optimized for use with performance camshafts and high-boost setups
• Manufacturer Part Number: SPRK-H1021S-SR20

Fits Honda F20 and K20 engines. The Supertech Dual Valve Spring Kit (SPRK-H1021D-ST) is designed for high-performance applications where increased camshaft lift and higher RPM limits demand superior valvetrain control. By utilizing a precision-wound dual-spring design, this kit provides the necessary seat and open pressure to prevent valve float, ensuring reliable valvetrain harmonics even under extreme racing conditions.

Supertech valve springs are manufactured from high-quality chrome silicon vanadium steel alloy for improved fatigue resistance and long-term durability. This kit is an essential upgrade for engine builders looking to maintain valvetrain stability in forced induction or high-lift naturally aspirated Honda builds.

• Specifically engineered for Honda F20 and K20 valvetrains
• Dual-spring configuration for maximum RPM stability and harmonic damping
• Constructed from high-tensile chrome silicon vanadium steel
• Direct replacement for high-performance builds requiring increased spring rates
• Manufacturer Part Number: SPRK-H1021D-ST

This Supertech Dual Valve Spring Kit is specifically engineered for high-performance Honda F20 and K20A2 engines. Designed to support aggressive camshaft profiles and high-RPM operation, these springs provide the necessary tension to prevent valve float and ensure precise valvetrain control under demanding racing or street conditions.

Each spring in the SPRK-H1019D kit is manufactured from high-tensile chrome silicon vanadium steel alloy for maximum durability and fatigue resistance. This dual-spring configuration is a critical upgrade for builds requiring increased seat pressure and higher lift capacity over factory components, protecting your engine during high-load cycles.

• Fits Honda F20 and K20A2 engines
• Dual spring design for enhanced valvetrain stability and harmonics control
• Engineered to prevent valve float at high RPM
• Compatible with high-lift performance camshafts
• Manufacturer Part Number: SPRK-H1019D

Engineered for high-performance builds, the Supertech Performance Dual Valve Spring Kit provides the necessary seat pressure and spring rate to support aggressive cam profiles and high-RPM operation in Honda B-Series engines. These dual springs are designed to minimize harmonic vibrations and prevent valve float, ensuring valvetrain stability during track use or high-lift applications.

• Fits Honda B-Series engines (B16, B17, B18, B20 VTEC conversions)
• Dual spring configuration for superior valvetrain control and high-RPM reliability
• Manufactured from high-tensile chrome silicon vanadium steel alloy for durability
• Designed to prevent valve float and maintain seat pressure with aftermarket camshafts
• Complete set of 16 dual valve springs
• Manufacturer Part Number: SPRK-H100DR-ST

Designed for high-revving Honda B16 and B18C engines, the Supertech SPRK-H100DR Dual Valve Spring Kit provides the valvetrain stability required for performance builds and aggressive camshaft profiles. By replacing factory springs with a precision-engineered dual spring setup, this kit significantly reduces the risk of valve float at high RPMs.

The inclusion of lightweight titanium retainers further optimizes engine performance by reducing reciprocating mass. This allows for faster engine response and safer operation near the redline. Each component is manufactured to strict tolerances to ensure consistent seat pressure and long-term durability under race or street conditions.

• Fits Honda B16 and B18C series engines
• Dual spring design for improved harmonic control and higher lift capacity
• Lightweight, precision-machined titanium retainers included
• Essential for high-lift aftermarket camshafts
• Manufacturer Part Number: SPRK-H100DR

Fits Honda F20 and K20A2 engines. This Supertech Beehive Valve Spring Kit (MPN SPRK-H1007BE-2) is engineered for high-performance applications where valvetrain stability is critical at high engine speeds. The beehive design features a tapered top that reduces the reciprocating mass of the retainer and the spring itself, allowing for increased RPM capability and superior harmonic resistance compared to standard cylindrical springs.

• Specifically designed for Honda F20 and K20A2 valvetrain configurations
• Beehive spring profile reduces mass and improves high-RPM harmonics
• Optimized for performance camshaft profiles to prevent valve float
• High-tensile chrome silicon vanadium steel construction for durability
• Complete kit engineered for direct fitment
• Manufacturer Part Number: SPRK-H1007BE-2

The Supertech SPRK-H1007BE-1 Beehive Valve Spring Kit is engineered for high-performance Honda F20 and K20A2 engines. By utilizing a beehive (tapered) design, these springs reduce the reciprocating mass of the valvetrain, allowing for higher RPM limits and increased stability under demanding racing conditions.

This kit replaces standard cylindrical springs to provide better harmonic resistance and minimize valve float. It is an essential valvetrain upgrade for engines running aggressive high-lift camshafts or high-boost forced induction setups where precise valve control is critical.

• Fits Honda F20 and K20A2 engines
• Beehive spring profile for reduced mass and improved harmonics
• Designed to prevent valve float at high engine speeds
• Engineered for increased valvetrain durability and lift capacity
• Manufacturer Part Number: SPRK-H1007BE-1