I built mine into the insert. Designed from a picture of a NACA from a Porsche 924 Turbo.
Last edited by SilverBullet75 : 07/31/2013 at 07:55 PM Reason: Original sounded condescending...sorry
SilverBullet75 Formerly: '01 Ebony VXSTLTH Now: '08 Saab 9-7x Aero 6.0L
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