Tech Support Videos

King Penn Industries - WindRestrictor Quality Assurance

Remembering Robert Pennington

BMW Z4 2002-2008 Gallery

Order your Z4 WindRestrictor here

Check out the new BMW Z4 Door Sills


"A BMW Z4 and a Honda S2000 passed on the highway then stopped to chat about their WindRestrictors.

(Photo taken by an Jonathan who was along to take photos.)"

Image Map

The Windrestrictor® for the BMW Z4 is in a class of its own.  We chose to go with a high quality mounting system.  The upper roll bar brackets are made from high quality aluminum and are powder coated with silver to match the factory roll bars. The lower retainer bracket is constructed of urethane and wrapped in fine leather, your choice of black or silver.  We vowed to ourselves never to use any cheap velcro straps on our products that do not belong on a BMW Z4 roadster. Our windscreen is the perfect addition to your collection of Z4 accessories! Our mounting system is the most stable and rigid available on the market today.  Our special Acrilite glass is an incredible 3/8 inch thick making it the strongest available wind deflector on the market. This  Z4 windschott is not your average product that’s for sure. If you want the cheapest windblocker available then you may want to keep looking. However, if you want a Z4 wind deflector that rises above all others on the market and is priced fairly then the Wind Restrictor is what you are looking for. Please do not settle for anything less than the best!

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We offer a lifetime warranty on our Z4 windscreen. The Windrestrictor®  is guaranteed never to fade or turn yellow over time like you may experience with cheaper models that are available.  Also our product is highly scratch resistant and will not crack or shatter like other thinner versions on the market.  You can choose from the plain /clear version, the engraved/etched version, or our patent pending engraved and illuminated version.  We have several in stock graphic choices or you can choose to have custom graphics.  We use only real laser engravings and do not use cheap stickers or inlays that may fade or fall off over time.  Our unique ability to do what other windscreen providers have never done is what has made us leaders in the industry.  On top of all that we consider it an honor to provide excellent customer service to all of our customers.  That’s what really sets our company apart from all the rest!

Custom Etched Gallery

Check out the new BMW Z4 Door Sills



Wind Restrictor™
11885 Forestgate Drive,
Dallas, TX 75243

Sales Inquiries:


(972) 487-5987
fax (972) 276-6029


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Wind Restrictor ®  Is a registered trademark of King Penn Industries

copyright © 2005- , Wind Restrictor®, all rights reserved

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WindRestrictor Galleries
Custom Etched  | BMW Z4 
| Cadillac XLR  | Chevrolet Camaro  | Chevrolet Corvette C5  | Chevrolet Corvette C6  | Chrysler Crossfire
Honda S2000  | Mazda Miata  | Mercedes SLK (R170)  | Mercedes SLK (R171)  | Opel GT  | Pontiac Solstice  | Porsche Boxster  | Saturn SKY

Door Sill Galleries
BMW Z4  | Chevrolet Camaro  | Chrysler Crossfire  | C6 Corvette  | Pontiac Solstice  | Saturn Sky

Holiday & Special Occasion  | WindRestrictor Special Events  | Edge-Lit Art