XTREM Inferior and superior titanium valve spring cup pour moteurs PSA XU5 and XU9

Ideal for highly-prepared competition engines, XTREM titanium cups offer an excellent strength/lightness/price ratio.
Made from high-quality titanium, they withstand very high engine speeds and the greatest stresses.
Sold in pairs: one upper cup and one lower cup.

Features:
• Engine code: PSA XU5J-180A, XU9J2-D6A, XU9JA-DKZ.
• Material : Titanium.
• Compatible spring reference : CATCAMS D99859 (Do not fit OEM valve springs).