Ferrea Single Valve Spring Kit for Nissan GTR R35 VR38DETT - KT4016 brand_Hawk oiled cotton media engineered to

oiled cotton media engineered to improve airflow and capture contaminants

Usually the problem surfaces with oil coming out of your blow off valves making an oily

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This keeps a consistent seat pressure across the head for ultimate reliability and performance

It’s even drastically lighter than the 57 lb partially titanium Nismo exhaust

Ferrea Single Valve Spring Kit for Nissan GTR R35 VR38DETT - KT4016 brand_Hawk oiled cotton media engineered toThe Ferrea Nissan GTR R35 VR38DETT Dual Valve Spring Kit is what we use in all of our in house builds. Ferrea makes the best valvetrain parts in the industry, hands down. Kit includes the following: Single Springs #S10137 (24) Titanium Retainers #E11107 (12) Titanium Retainers #E11110 (12) Seat Locators #SL1116 (24) Valve Locks #K10102 (24)