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Intake Valve, .5mm Oversized, Back Cut, 4v Vw/Audi

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Black Nitride oversize stainless intake valve for all 4v VW/Audi motors including 16v,20v and 32v motors.

Back cut valve head and stem greatly increase flow, we've seen up to 15cfm just from dropping these in an otherwise stock head.

Fit with OEM seats, use with OE fit springs, retainers, guides, clips, etc. OE seats need to be cut to the new larger diameter, otherwise a direct fit for stock.

Price each.

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