These awesome new covers from MMR feature true screw in oil fill caps, blow out proof dipstick provisions, -12 Screw in PCV fittings (not twist to lock like factory) , and stainless steel hardware and screw in Biller Oil fill cap. Available with or without VCT solenoid holes for a ultra clean look. 100% CNC Machined Billet Aluminum and Proudly Made in USA! No more cracked plastic covers! Available in Raw/machined Silver or Black or Red Anodized.