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Believe It Ferrea Premium Race Dual N/a Spring & Retainer Combo: 100lbs Now 60% Cheaper [sftZRvjb]

$79.99 $255.99 -69%

Race Spring is recommended for all applications where you are using a larger aftermarket cam, including road racing. Max recommended lift on the Spring is .590" and max recommended RPM is 9500. Specs:Dual Valve Spring 100 lbs Installed Seat Pressure 

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Race Spring is recommended for all applications where you are using a larger aftermarket cam, including road racing. Max recommended lift on the Spring is .590" and max recommended RPM is 9500. 


Specs:

Dual Valve Spring 100 lbs Installed Seat Pressure 

Kit Includes:

  • 16 Dual Springs
  • 16 Seat Bases
  • 16 Titanium Retainers & Keepers

Application:

K-series Engines: 
k20a2, k24a2

What Our Customers Say

January 12, 2026

Absolutely no complaints!

This is a very potent and an efficient item.

- Augustine O..

January 12, 2026

Absolutely no complaints!

I am very happy with my product and its great purchase.

- Arawn E..

January 12, 2026

Absolutely no complaints!

A really excellent piece of very, very, very useful tech.

- Afallach V..

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