RalliSpec LogoRalliSpec Group N Car at LSPR
> home / catalog / engine internal / valve spring & retainer / supertech valve spring & retainer kit subaru

Dual Valve Spring & Titanium Retainer Kit

Supertech valve spring kits are engineered for accurate high rpm valve actuation with more aggressive cam profiles. Dual springs reduce stresses and valvetrain harmonics that can adversely affect durability. Springs are manufactured from superclean chrome silicon vandaium steel and are gas nitrided prior to shot peening to improve fatigue life. Each kit includes a full set of springs, hardened spring seats, and lightweight titanium retainers.

Usually ships in 2 to 3 days.

Manufacturer: Supertech


  • Subaru EJ205/EJ207
  • Subaru EJ255/EJ257
Part No. Description Price Ea. Add to Cart
STSK-SU1 Supertech Valve Spring Kit (Seat Pr. = 70lbs / Max Lift = 14.8mm) $435.00
STSK-SU4 Supertech Valve Spring Kit (Seat Pr. = 82lbs / Max Lift = 13.5mm) $435.00