Part Number: 5040

Description: Spring/Retainer Kit; Beehive Single Spring; Titanium Retainer; Uses OEM Spring Seat

Seat Pressure: 85 @ 1.55 / 230 @ 0.450"

Lift CB: 0.645"

Fitment: 03-06 Mitsubishi Lancer Evolution

Details:

The Beehive spring has been designed to be more stable than standard single or dual cylindrical springs. The smaller and lighter retainer used on the beehive valve spring allows for higher RPM and more valve control.

Features: 

• Rev faster

• Lighter components

• More durable design

• Less stress on valvetrain components

• Lower spring frequency for more precise valve control.

• More valve control equals more aggressive cam profiles

• All of these items help to return more power for you to enjoy

• Includes Grade 5 Titanium Retainers

• Max RPM of 8,500 RPM

• Max boost of 30 psi