Fits select Toyota and Lotus models equipped with the 2ZZ-GE engine, including the Lotus Elise, Exige, and Toyota Celica GT-S. This kit is a vital valvetrain upgrade for engines operating at high RPMs or utilizing aggressive aftermarket camshaft profiles.

The Supertech SPRK-A2416-T2Z Single Valve Spring Kit is engineered to maintain precise valve control and prevent valve float, a common risk in the high-revving 2ZZ-GE architecture. By providing consistent seat pressure and managing valvetrain harmonics, these springs ensure reliable performance during track use and spirited driving. The single-spring design is specifically chosen to optimize valvetrain mass while providing the necessary tension for high-performance applications.

• Designed specifically for the 1.8L 2ZZ-GE engine platform
• High-grade alloy construction for maximum fatigue resistance and longevity
• Helps prevent catastrophic engine damage caused by valve-to-piston contact at high RPM
• Complete kit includes necessary components for a comprehensive valvetrain refresh
• Manufacturer Part Number: SPRK-A2416-T2Z

Fits select VW and Audi models equipped with the 2.0L FSI EA113 engine.

The Supertech SPRK-A2416-N2 single valve spring kit is engineered to provide the increased tension and stability required for performance valvetrain applications. By replacing worn or weak factory springs, this kit helps prevent valve float at higher RPMs, ensuring consistent engine timing and protecting your internal components during spirited driving or track use.

Supertech utilizes high-quality chrome silicon vanadium steel for its springs, providing superior fatigue resistance and long-term durability under high-stress conditions. Each spring is precision-wound and processed to tight tolerances to ensure uniform performance across the entire cylinder head.

• Specifically designed for the EA113 FSI cylinder head architecture
• Enhanced valvetrain control and high-RPM reliability
• Single spring design for straightforward installation
• Manufactured from high-tensile chrome silicon vanadium steel
• Manufacturer Part Number: SPRK-A2416-N2

Fits Audi vehicles equipped with 2.5T FSI, TFSI, EA113, and EA888 engine platforms.

The Supertech SPRK-A2416-BE2 Single Valve Spring Kit is engineered to provide the increased seat pressure and higher lift capability required for high-performance builds. By replacing the factory valve springs, this kit prevents valve float during high-RPM operation and ensures stable valvetrain harmonics under increased boost levels or with more aggressive camshaft profiles.

• Optimized for Audi 2.5T FSI, TFSI, EA113, and EA888 engines
• Single spring configuration designed for high-RPM stability and reliability
• Essential for forced induction applications to prevent valve float
• Engineered to strict tolerances for consistent spring rates
• Manufacturer Part Number: SPRK-A2416-BE2

This Supertech single valve spring kit is specifically engineered for the Volkswagen 2.5L 5-cylinder 20V engine platform. Designed to provide consistent spring pressure and maintain valvetrain stability, this kit (MPN SPRK-A2416-5) addresses the requirements of engines operating at higher RPM ranges or using performance camshaft profiles.

Fits select Volkswagen models equipped with the 2.5L 5-cylinder 20-valve engine.

• Designed specifically for VW 2.5L 5-cylinder 20V engines
• Single valve spring configuration for reliable valvetrain control
• Engineered to high tolerances for performance durability
• Includes all springs required for the 20V cylinder head
• Manufacturer Part Number: SPRK-A2416-5

Designed for the BMW S54 24-valve engine, this Supertech Dual Valve Spring Kit (MPN: SPRK-2521-2BM-T1) provides the increased spring pressure and harmonics control required for high-performance valvetrains. This kit is a critical upgrade for engines seeing high-RPM use or aggressive camshaft profiles, helping to prevent valve float and ensure reliable engine operation under load.

• Fits BMW S54 24V engines (3.2L)
• Dual valve spring design for superior harmonics control
• Helps prevent valve float during high-RPM operation
• Engineered for performance builds and high-lift camshafts
• Manufacturer Part Number: SPRK-2521-2BM-T1

The Supertech Dual Valve Spring Kit for the BMW S54 engine is engineered to provide the increased tension and stability required for high-performance and high-RPM builds. By utilizing a dual-spring design, this kit significantly reduces the risk of valve float, ensuring the valvetrain remains controlled under aggressive camshaft profiles or increased boost levels.

This kit includes the SEAT-BMS55 spring seats, which are specifically matched to these springs to provide a precise mounting surface and maintain correct installed height. These components are essential for builders looking to improve the reliability and mechanical ceiling of the S54 valvetrain.

• Application: BMW S54 Engine
• Spring Type: Dual Valve Spring
• Included Components: SEAT-BMS55 Spring Seats
• Manufacturer Part Number: SPRK-2521-2BM-ST

This Supertech Single Valve Spring Kit is specifically engineered for the Nissan Skyline RB25 DOHC 24V engine utilizing hydraulic lifters. Designed to replace worn OE components or support mild performance upgrades, these springs provide the controlled tension necessary to maintain valvetrain stability and prevent valve float during higher-RPM operation.

• Application: Nissan RB25 DOHC 24V engines (Hydraulic Lifter models)
• Configuration: Single spring design
• Engineered for increased durability and consistent seat pressure
• Direct fit for factory mounting specifications
• Manufacturer Part Number: SPRK-2081-RB25

Engineered for high-performance Mazda Miata (1.8L) builds, the Supertech Dual Valve Spring Kit (SPRK-1012-M18D) provides the necessary seat pressure and stability to prevent valve float at high RPMs. By utilizing a dual-spring design, this kit offers superior harmonic dampening and increased lift capacity over original equipment components.

Supertech springs are manufactured from high-quality chrome silicon vanadium steel alloy, selected for its exceptional fatigue resistance and durability under extreme thermal stress. This makes them an essential upgrade for naturally aspirated high-revving engines or forced induction applications where increased cylinder pressures demand precise valve control.

• Fits Mazda Miata (1.8L)
• Dual spring configuration for enhanced high-RPM reliability
• Constructed from high-tensile chrome silicon vanadium steel alloy
• Reduces the risk of valve-to-piston contact during aggressive driving
• Manufacturer Part Number: SPRK-1012-M18D

Designed for high-performance Volkswagen VR6 builds, these Supertech Dual Valve Springs provide the increased tension and stability required for high-RPM operation and aggressive camshaft profiles. By utilizing a dual-spring design, this set helps prevent valve float and ensures reliable valvetrain timing under heavy loads.

This kit is an essential upgrade for cylinder heads intended for track or forced induction use, providing significantly better control than standard single-spring setups. The set includes all 12 springs required for a complete valvetrain refresh on compatible VR6 engines.

• Manufacturer Part Number: SPR-V2093-4-12
• Application: Volkswagen VR6
• Quantity: Set of 12 springs
• Spring Configuration: Dual Valve Spring

Fits 1993-2002 Toyota Supra (2JZ-GE / 2JZ-GTE) engines.

These Supertech single valve springs are engineered to provide the increased tension and stability required for high-performance valvetrains. Whether you are building a high-revving naturally aspirated 2JZ-GE or a high-boost 2JZ-GTE, these springs help prevent valve float and ensure precise valve timing at elevated RPM ranges. They are an essential upgrade when installing more aggressive camshaft profiles or when refreshing a high-mileage cylinder head.

Each spring is manufactured from high-quality chrome silicon vanadium steel alloy for exceptional durability and fatigue resistance. As a direct replacement for factory springs, they provide a reliable solution for maintaining valvetrain integrity under the mechanical stresses of performance driving.

• Manufacturer Part Number: SPR-TS1015-SI-16
• Quantity: Set of 16
• Spring Type: Single Spring
• Engine Compatibility: Toyota 2JZ-GE and 2JZ-GTE

Fits Toyota Supra models equipped with 2JZ-GE and 2JZ-GTE engines.

Maintain valvetrain stability and prevent valve float in high-performance applications with this set of Supertech Performance dual valve springs. Engineered specifically for the Toyota 2JZ platform, these springs provide the increased seat pressure and harmonic damping required for high-lift camshafts and high-RPM operation. Whether building a high-boost street engine or a dedicated track machine, these dual springs ensure the valves close securely and follow the cam profile precisely.

• Specifically designed for 2JZ-GE and 2JZ-GTE cylinder heads
• Dual spring configuration for superior harmonic control and reliability
• Essential for high-lift aftermarket camshaft upgrades
• Manufactured from high-quality chrome silicon vanadium steel
• Complete set of 16 valve springs
• Manufacturer Part Number: SPR-TS1015-16

Fits Toyota 4AGE 16V engines.

Upgrade your Toyota 4AGE 16V valvetrain with this complete set of 16 Supertech single valve springs. These springs are engineered to provide the necessary tension to maintain valvetrain stability at higher RPM ranges, helping to prevent valve float that can occur with tired factory units or more aggressive camshaft profiles. By ensuring the valves follow the cam lobe precisely, this set helps maintain consistent power delivery and engine reliability in performance applications.

Built to precise tolerances, these springs are a direct-fit solution for enthusiasts looking to refresh or build out a 16-valve cylinder head. This kit (MPN: SPR-TC25S-16) offers the durability and consistency required for high-revving 4AGE builds.

• Engine Application: Toyota 4AGE 16-Valve
• Spring Type: Single Valve Spring
• Quantity: Full set of 16
• Manufacturer Part Number: SPR-TC25S-16

Fits Mini Cooper models equipped with N14B16 and N18B16 engines.

Supertech beehive valve springs are engineered to provide superior valve control and stability at higher RPMs. The beehive design reduces reciprocating mass and improves harmonics compared to traditional cylindrical springs, making them an essential upgrade for performance N14 and N18 builds. These springs are specifically designed to be compatible with factory hardware for a straightforward installation.

• Manufacturer Part Number: SPR-MC56BE-16
• Spring Design: Beehive
• Quantity: Set of 16
• Compatibility: Fits OEM retainers
• Engineered for increased durability and high-RPM performance
• Precision manufactured for consistent seat and open pressures

Fits Honda B16A, B17A, and B18C VTEC engines.

This Supertech Dual Valve Spring set is engineered to provide the increased seat and open pressure required for high-performance Honda B-series builds. By utilizing a dual-spring configuration, these components offer superior harmonic damping and are capable of supporting high-lift camshafts while preventing valve float at high RPMs. These are a critical upgrade for any B-series VTEC engine being pushed beyond factory limits in street or track applications.

• Fits B16A, B17A, and B18C VTEC cylinder heads
• Dual-spring design for enhanced valvetrain stability and high-RPM reliability
• Engineered to prevent valve float and maintain valvetrain control
• Includes a full set of 16 valve springs
• Manufacturer Part Number: SPR-H200DR-16

Engineered for high-performance valvetrains, this Supertech Dual Valve Spring set provides the critical tension and stability required to prevent valve float at high RPMs. By utilizing a dual-spring configuration, these springs offer superior damping characteristics and an added safety margin for high-lift camshaft applications.

• Outer Spring Diameters: 29.00mm OD / 21.80mm ID
• Inner Spring Diameters: 21.00mm OD / 15.50mm ID
• Maximum Net Lift: 18.30mm
• Coil Bind: 22.00mm
• Quantity: Set of 16 springs
• Manufacturer Part Number: SPR-H1022D-16

Fits Honda K20 and K24 engines, as well as F20C1 and F22C1 (S2000) applications.

This Supertech dual valve spring set is engineered to provide the increased tension and stability required for high-performance valvetrains. By utilizing a dual-spring design, these components effectively dampen harmonics and prevent valve float at high RPMs, making them an essential upgrade for engines with aggressive camshaft profiles or increased rev limits.

Manufactured from high-quality chrome silicon steel alloy, these springs are designed for long-term durability under extreme racing conditions. This complete set ensures consistent seat pressure across all cylinders for reliable engine performance.

• Manufacturer Part Number: SPR-H1019D-16
• Quantity: Set of 16 Dual Valve Springs
• Engine Fitment: Honda K20, K24, F20C1, F22C1
• Designed for high-lift camshafts and increased RPM limits

Ensure valvetrain stability in your high-performance K-Series build with this Supertech Dual Valve Spring kit (SPR-H100DR-16). Designed specifically for Honda K20 and K24 engines, these dual springs provide the increased seat and open pressure required to prevent valve float at high RPMs and accommodate aggressive aftermarket camshaft profiles.

By utilizing a dual-spring design, Supertech minimizes harmonic resonances and improves reliability under the demanding conditions of forced induction or high-revving naturally aspirated setups. This set of 16 springs replaces factory components to provide the necessary control for upgraded valvetrain assemblies.

• Compatible Engines: Honda K20 and K24
• Spring Configuration: Dual Valve Spring
• Quantity: Complete set of 16
• Application: Performance valvetrain / high-RPM builds
• Manufacturer Part Number: SPR-H100DR-16

Fits BMW M50, M52, S50, and S52 engines.

This Supertech Dual Valve Spring set (SPR-H1005D-24) is engineered to provide the valvetrain stability required for high-performance and high-RPM applications. By utilizing a dual-spring configuration, these components help prevent valve float and ensure precise valve timing where factory single springs may fail under increased load or higher lift profiles.

• Compatible with BMW M50, M52, S50, and S52 engine platforms
• Dual-spring design for enhanced harmonic dampening and valvetrain control
• Manufacturer Part Number: SPR-H1005D-24
• Quantity: Complete set of 24 springs

Fits Honda H22A1 and H22A4 engines.

This Supertech Dual Valve Spring set is engineered to provide the necessary tension and seat pressure required for high-RPM engine builds and aggressive camshaft profiles. By utilizing a dual-spring design, these components offer superior harmonic damping and stability compared to standard single-spring setups, effectively preventing valve float in the H22-series cylinder head.

Precision manufactured to strict tolerances, these springs ensure consistent performance across the entire lift cycle, protecting your valvetrain during high-performance driving or racing conditions. This kit is a direct performance upgrade designed to maintain valvetrain integrity when pushing beyond factory redline limits.

• Prevents valve float in high-performance and high-RPM applications
• Dual-spring configuration for improved harmonic control
• Compatible with Honda H22A1 and H22A4 engine codes
• Includes a complete set of 16 dual valve springs
• Manufacturer Part Number: SPR-H1005D-16

Upgrade your Honda D16A or D15B valvetrain with this set of 16 Supertech performance single valve springs. Engineered to handle the increased demands of high-performance builds, these springs provide the necessary tension to prevent valve float and ensure reliable valvetrain harmonics during high-RPM operation.

Supertech springs are manufactured using high-quality chrome silicon steel and undergo rigorous heat treatment and stress-relieving processes to maintain consistent seat pressure over time. They are a direct-fit solution for enthusiasts looking to refresh worn factory components or support mild camshaft upgrades.

• Fits Honda D16A and D15B engines
• Type: Single Valve Spring
• Quantity: Full set of 16 springs
• Material: High-tensile chrome silicon steel
• Manufacturer Part Number: SPR-H1003S-16

Designed for high-performance valvetrain stability, the Supertech SPR-H1002S-16 Single Valve Spring set is engineered to handle the increased lift and RPM demands of modified Honda D-Series engines. These springs provide the consistent tension required to prevent valve float, ensuring precise engine timing and protecting critical components during high-RPM operation.

• Fits Honda D15B, D16Z6, D16Y6, D16Y7, D16Y8, and D17A engines
• Engineered for improved harmonic resistance and durability
• Prevents valve float under aggressive cam profiles
• Manufacturer Part Number: SPR-H1002S-16
• Included: Set of 16 single valve springs

Designed for high-performance valvetrain setups, this Supertech Dual Valve Spring set is engineered to handle the increased lift and RPM demands of modified Honda B-series engines. By utilizing a dual-spring configuration, these components provide the necessary seat pressure and tension to prevent valve float and bounce, ensuring precise timing and valvetrain stability during aggressive VTEC engagement and high-RPM operation.

• Fits Honda B16A, B17A, and B18C engines
• Complete set of 16 dual valve springs
• High-quality chrome silicon vanadium steel alloy construction
• Designed to accommodate high-lift aftermarket camshafts
• Manufacturer Part Number: SPR-H1002D-16

These springs are a critical upgrade for any B-series build where the factory redline is being extended or where higher-lift cams are used. They provide the mechanical reliability required to protect your engine's top end under racing conditions.

Fits Honda H22A1 and H22A4 engines.

This Supertech Dual Valve Spring kit is engineered for high-performance Honda H22 builds that demand precise valvetrain control. By utilizing a dual-spring architecture, these springs provide the necessary seat pressure and harmonic damping to prevent valve float during high-RPM operation and with high-lift camshaft profiles. They are a critical upgrade for maintaining engine reliability and performance in both naturally aspirated and forced induction applications.

• Designed for high-RPM stability and increased valve lift
• Dual-spring configuration improves harmonic damping and valvetrain response
• Direct fit for H22A1 and H22A4 cylinder heads
• Complete set of 16 valve springs
• Manufacturer Part Number: SPR-H1000D-16

Upgrade your valvetrain stability with this set of 12 Supertech beehive valve springs, specifically engineered for the Toyota G16E-GR engine. Designed for both intake and exhaust applications, these springs provide the necessary tension and harmonic control required for high-performance builds and increased RPM ranges.

The beehive profile utilizes a reduced top diameter, which allows for smaller, lighter retainers. By decreasing the reciprocating mass of the valvetrain, these springs improve valve response and reduce the risk of valve float at high engine speeds. Each spring is manufactured to Supertech’s exacting tolerances to ensure consistent seat pressure across all 12 units.

• Fits Engine: Toyota G16E-GR (found in GR Yaris and GR Corolla)
• Spring Style: Beehive
• Application: Intake and Exhaust (Complete Set)
• Quantity: 12 Springs
• Manufacturer Part Number: SPR-FCO-BE2-12

Fits BMW S65 and S85 engines typically found in the E90/E92/E93 M3 and E60/E63 M5/M6.

This Supertech Beehive Valve Spring set is engineered to improve valvetrain stability and harmonics in high-revving BMW M Power engines. The beehive profile features a reduced top diameter, which significantly lowers the reciprocating mass of the retainer and the spring itself. This design allows for better control of valve motion and reduces the risk of valve float at high RPMs.

These springs are specifically developed to be a direct performance upgrade while maintaining ease of installation. They are designed to work seamlessly with your factory BMW retainers and spring bases, eliminating the need for aftermarket hardware conversion. This kit provides a complete set of 40 springs, enough to fully service either the S65 V8 or the S85 V10 engine.

• Manufacturer Part Number: SPR-BMS65-BE1-40
• Spring Type: Beehive
• Quantity: Set of 40
• Fitment: BMW S65 (V8) and S85 (V10) Engines
• Installation: Compatible with factory retainers and spring bases

This Supertech Beehive Valve Spring set is engineered for BMW S65 and S84 engines, providing a high-performance solution for maintaining valvetrain stability at high engine speeds. Designed to be compatible with factory retainers and bases, these springs offer the mechanical advantages of a beehive profile without requiring a complete valvetrain conversion.

The beehive design features a reduced top diameter which minimizes reciprocating mass. This allows for superior harmonic control and higher RPM potential compared to standard cylindrical springs. Each spring is manufactured with precision tolerances to ensure consistent seat and open pressures across the complete set of 32.

• Fits BMW S65 and S84 engines
• Complete set of 32 springs
• Engineered for use with factory retainers and base seats
• Beehive profile reduces valvetrain mass and improves high-RPM harmonics
• Manufacturer Part Number: SPR-BMS65-BE1-32

Upgrade your cylinder head with this set of eight Supertech black nitrided intake valves, specifically engineered for the Subaru EJ25 engine. These valves are designed to meet the demands of high-performance and forced-induction builds where standard OE components may fail under increased thermal and mechanical stress.

Supertech uses a black nitriding process to create a hardened surface layer. This treatment significantly reduces friction between the valve stem and the valve guide, while improving wear resistance against the valve seat. The result is a more durable valvetrain component that maintains tight tolerances over a longer service life, essential for consistent airflow and compression.

• Engine Application: Subaru EJ25
• Valve Type: Intake
• Surface Treatment: Black Nitrided for superior hardness and reduced friction
• Material: High-strength stainless steel construction
• Quantity: Complete set of 8 valves
• Manufacturer Part Number: SIVN-1016-8

Fits Subaru EJ20 and EJ25 engines.

These Supertech Black Nitrided intake valves are engineered for high-performance Subaru EJ-series builds requiring increased airflow and superior component durability. Each valve features a specialized black nitriding treatment, which significantly hardens the surface and reduces friction for improved guide life and heat resistance. These +1mm oversize valves are designed to maximize volumetric efficiency in engines with modified or ported cylinder heads.

• Brand: Supertech
• Engine Fitment: Subaru EJ20 / EJ25
• Valve Type: Intake
• Head Diameter: +1mm Oversize
• Length: Standard (Std)
• Material/Finish: Black Nitrided for reduced friction and increased surface hardness
• Quantity: Set of 8 valves
• Part Number: SIVN-1014-8

Note: Oversize valves require appropriate valve seat machining for proper fitment and sealing during installation.

Fits Subaru EJ20 and EJ25 engines.

This set of 8 Supertech intake valves is engineered for high-performance Subaru EJ-series builds that demand superior valvetrain durability. Each valve is manufactured from one-piece forged stainless steel and undergoes a specialized black nitriding process. This treatment creates a high surface hardness and a smooth finish, significantly reducing friction within the valve guide while improving resistance to wear and heat-cycling fatigue.

Designed to withstand the stresses of increased boost and higher RPM ranges, these valves are a direct upgrade for performance-oriented EJ20 and EJ25 cylinder heads. The micro-polished stems ensure minimal parasitic drag and consistent operation under extreme thermal loads.

• Manufacturer Part Number: SIVN-1010-8
• Finish: Black Nitrided coating for reduced friction and increased hardness
• Construction: One-piece forged stainless steel
• Valve Type: Intake
• Quantity: Set of 8
• Fitment: Subaru EJ20 / EJ25 engines

Fits Subaru EJ20 and EJ25 engines.

This set of 8 Supertech Black Nitrided exhaust valves is engineered to handle the high thermal loads and increased cylinder pressures common in performance Subaru EJ-series builds. The black nitriding process creates a surface finish that is harder and smoother than standard chrome plating, resulting in significantly reduced friction within the valve guide and superior heat dissipation.

Designed for durability in high-boost and high-RPM environments, these valves provide a reliable solution for both street and track applications. The specialized coating helps prevent galling and stem wear, ensuring a longer valvetrain service life and consistent sealing performance.

• Manufacturer Part Number: SEVN-1010-8
• Valve Type: Exhaust
• Quantity: Set of 8
• Series: Black Nitrided
• Engine Fitment: Subaru EJ20, EJ25