Street & Performance
Cars

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

If you look closely at the end of the screwdriver all that "stuff" is in the carburetors. Gasoline goes bad after 2 years. Moral of the story is have fun and drive your Porsche. The gas will not go bad and you will have fun driving your car!
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#porscheservice #porscheservicemontclair #porsche356b #nine11design #911design
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2 days ago

If you look closely at the end of the screwdriver all that stuff is in the carburetors. Gasoline goes bad after 2 years. Moral of the story is have fun and drive your Porsche. The gas will not go bad and you will have fun driving your car! 
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#porscheservice #porscheservicemontclair #porsche356b #nine11design #911design

Our customers beautiful 1962 356 cabriolet is in for some service work.
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#911design #nine11design #porsche356b #porscheservicemontclair #porscheservice
... See MoreSee Less

3 days ago

Our customers beautiful 1962 356 cabriolet is in for some service work.
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#911design #nine11design #porsche356b #porscheservicemontclair #porscheservice

It time to start getting ready for the PCA Club race at one of my favorite tracks Circuit of the Americas in Austin Texas. Myself and my customer Dave Elsner @bigwaveracing racing will be there in about 3 weeks.
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#nine11design #911design #porsche991gt3cup #pcaclubracing #cota
... See MoreSee Less

4 days ago

It time to start getting ready for the PCA Club race at one of my favorite tracks Circuit of the Americas in Austin Texas. Myself and my customer Dave Elsner @bigwaveracing racing will be there in about 3 weeks. 
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#nine11design #911design #porsche991gt3cup #pcaclubracing #cota

911 Design Swag

  • shirt
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  • shirt

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