Supertech

Supertech Mazda Miata 1.8L Dual Valve Spring Kit - SPRK-MM18-D

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SKU:
SPTSPRK-MM18-D
UPC:
1037721241789
MPN:
SPRK-MM18-D
Availability:
Regularly stocked product
MSRP: $787.98
$630.57
— You save $157.41
Frequently bought together:

Description

What is the maximum RPM limit for these valve springs?
SPT Dual Valve Spring Kits are engineered for extreme RPMs, unlocking your engine's true potential up to 9000 RPM.

Is professional installation required for this product?
Professional installation is recommended for SPT Dual Valve Spring Kits to ensure optimal valvetrain stability and performance.

SPT Dual Valve Spring Kits are engineered for extreme RPMs, ensuring peak performance and durability for motorsport enthusiasts. These retainers and valve springs provide enhanced valvetrain stability for extreme conditions. Confirm fitment with your vehicle for confident, high-RPM engine upgrades.

What Owners Say

Owners and enthusiasts recognize these dual valve springs as serious hardware for high-performance builds, with proven capability supporting over 800 horsepower and 10,500+ rpm applications. The dual spring design effectively prevents valve float at extreme engine speeds, making them a go-to choice for builders pushing beyond stock rev limits. Some users note that the increased spring pressure requires appropriate compression tools—standard equipment may struggle with installation compared to lighter single or beehive spring setups. Enthusiasts frequently compare Supertech against GSC and other premium options when selecting components for forced induction and high-rpm builds. The consensus positions these springs as a reliable, battle-tested solution for serious engine builds where valve train stability at the limit matters most.

Why Choose the SPT Dual Valve Spring Kits

Delivers superior valve control for maximum power and responsiveness.

Achieves higher RPM limits, unlocking your engine's true potential.

Provides enhanced valvetrain stability for extreme performance conditions.

Transforms your engine's reliability under demanding track use.

Who Is This For?

Track / Autocross — 9/10
Engineered for extreme RPMs, peak performance and durability.

Drag Racing — 9/10
Engineered for extreme RPMs, peak performance and durability.

Racing Competition — 9/10
Engineered for extreme RPMs, peak performance and durability.

Street Performance — 7/10
Supports higher RPMs for enhanced street performance.

Engine Performance — 10/10
Engineered for extreme RPMs, ensuring peak performance.

Frequently Asked Questions

Will the Supertech SPT Dual Valve Spring Kits fit my vehicle?

Confirming vehicle fitment is essential before purchase for precise compatibility. Always consult your vehicle's specifications or a qualified technician to ensure the Supertech SPT Dual Valve Spring Kits are the correct match for your application.

How difficult is the Supertech SPT Dual Valve Spring Kits installation?

Professional installation is recommended for the Supertech SPT Dual Valve Spring Kits to ensure optimal performance and valvetrain integrity. This advanced level of installation requires specialized knowledge and tools for proper execution.

What performance improvement does the SPT Dual Valve Spring Kits provide over stock?

These kits deliver superior valve control, achieving a 9/10 score for Track/Autocross and Drag Racing use cases. Experience higher RPM limits and unlock your engine's true potential for demanding motorsport applications.

Is the Supertech SPT Dual Valve Spring Kits worth upgrading from OEM?

Upgrading to the Supertech SPT Dual Valve Spring Kits is recommended for motorsport enthusiasts seeking enhanced engine reliability at high engine speeds. They provide enhanced valvetrain stability for extreme performance conditions and demanding track use.

What makes the Supertech SPT Dual Valve Spring Kits ideal for extreme RPMs?

Engineered for extreme RPMs, these kits ensure peak performance and durability with a 10/10 score for Engine Performance usage. They provide enhanced valvetrain stability, transforming your engine's reliability under demanding track use.

Additional Resources

Official Supertech Product Page

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Additional Information

Clearance Item:
N
MPN:
SPRK-MM18-D
Proposition 65:
N
Case Lot Quantity:
1
Category:
Engine Components>Valve Springs, Retainers
Universal Fitment:
Y
Track / Autocross:
9/10
Drag Racing:
9/10
Racing Competition:
9/10
Street Performance:
7/10
Engine Performance:
10/10
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