Street & Performance

Driving a Porsche® means you care. Whether it’s a daily driver or concourse car, keeping it running in optimal condition is your goal and ours. Our staff of non-commissioned, specially-trained technicians will provide the service and diligence you have come to expect.

Street & Performance Services  >

Race Car Development
& Support

Not everything comes off the shelf nor can it be replicated. Often, each set up is custom and why only our talent can design, build cars, components and create engine or exhaust modifications that enhance your vehicle’s performance based on our over 20 years of real race experience.

Race Car Development Services  >

Auto Body Repair
& Customization

At 911 Design, we employ only the most qualified auto body technicians to perform the complex structural, mechanical, body and refinish work required to meet and exceed industry quality standards and in the same manner as an authorized Porsche® Collision Center.

Autobody Repair Services  >

Why Choose Us?

  • We are a full-service repair and restoration facility
  • We specialize in custom fabrication, design and performance upgrades for all Porsche models.
    (We also work on Ferrari and Lamborghini models as well)
  • Served the Porsche® community both inside and outside of California for over 20 years
  • Collision and custom work on ANY make or model vehicle – American brands as well
  • Aluminum and Carbon Fiber repair or replacement
  • Over 20 years of racing experience – club events and professional racing series’ provide a wealth of vehicle performance knowledge
  • Offers an “Arrive & Drive” customer racing program that includes a full race crew, trailering and pit/paddock support
  • Conveniently located on the 10 Freeway in Montclair, CA – with easy on/off access and ample loading areas

Shop Location

Recent News & Work

Our customer brought us his beautiful 1956 Porsche 356 because the motor which has been upgraded to a 1978 911 engine was leaking oil. We have removed the motor from the car and are currently worki... ... See MoreSee Less

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Our customer's 2004 Porsche 996 GT3 is now complete. It was a long process but the end result is well worth it. When the car came to us it was in pretty bad shape.

The nose of the car was shifted ...
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Our customer brought us his 1975 Porsche 911 Carrera to have it completely repainted along with having the motor removed and resealed to repair exisiting oil leaks and have a rust resistant underco... ... See MoreSee Less

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Call us today to schedule an appointment: (909) 982-9111