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Powerhouse Racing Billet Valve Covers are Precision Machined from Solid 6061 Billet and retain OEM fitment
Free-air calibration may correct drift as a sensor ages
No check engine lights
This positive attachment method ensures that your intake remains securely attached to the turbo without fear of it slipping off like our competitor’s rubber couplers
Kit includes 1 seat
Cometic Head Gasket .051" - 87mm Bore For Nissan RB30 wheels Powerhouse Racing Billet Valve CoversCometic Head Gasket . 051" 87mm Bore For Nissan RB30 Part # 4323 051 Gasket Material: MLS: (Multi Layer Steel) The Cometic MLS gasket is comprised of three layers of Stainless Steel. Cometic uses Stainless steel for increased strength, it's ability to rebound and corrosion resistance. The outer layers of the gasket are embossed and coated on both sides with a flouroelastomer rubber based material (Viton) designed to meet the demands of a variety of