This guy sells stock looking front and rear bumpers made from fiberglass. He calls them bumper "blades".
http://www.rennspd.com/
They use the stock bellows and valance, and give a totally stock appearance. The weight savings approaches the full fiberglass Ruf style and other units.
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Chuck Moreland '86 Cab - "Sparky", '77 Targa - "Sweet Pea"
[This message has been edited by Clark Griswald (edited 06-21-2001).]