Saturday, April 24, 2021 at 8:00 AM MDT
Sunday, April 25, 2021 at 4:00 PM MDT

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Expo Idaho 
5610 N Glenwood St
Garden City, ID 83714

Driving Directions 


Bob Kunz 
Silver Sage Region, Porsche Club of America 

Thank you to our sponsor

Porsche of Boise

Porsche of Boise


Silver Sage Spring Autocross presented by Porsche of Boise 

Thank you to everyone who signed up.
The event is fully subscribed and registration is closed.

 If you would like to be put on the waitlist, send an email to registrar@silversageporsche.com.


Feel the need for some cornering and just a bit of speed in your Porsche? ....

It's time to register for the Sliver Sage Autocross two-day event at Expo Idaho on April 24-25.

Not sure what an Autocross is all about? Learn more here.

Covid-19 rules are being relaxed. The event will be held in accordance with the current PCA advice and CDH rules for Ada county.

Read ahead and register/submit payment using the "Register Now!" button below. Registration will close on Monday, April 19.

If the event is cancelled, or if you must cancel due to illness, a full refund will be issued.

  • Two day event at Expo Idaho. Register for one day or both.
  • Limit of 44 drivers per day.
  • Cost is $35/day or $60 for both days per driver
  • The course will be slightly different each day
  • Must have your own helmet (SNELL SA2010 or later certification)
  • Only drivers and participant volunteers allowed inside fenced area
  • No ride along instruction
  • All drivers will also have work assignments (mostly course marshals)
  • You will need to mark both sides of your car with your number (magnetic numbers, removable painters tape or window chalk suggested). Cars must be street legal.
  • For lunch, you may order one (menu) which will be delivered at lunch time, bring your own, or go out. There will be a 45 minute break.
  • Masks are highly recommended but depend on current CDH rules at the time.
  • Bring your own FRS/GMRS radio capable of using channel 5.

Many of the "day-of" activities will be modified to use Zoom/YouTube either before the weekend or at the event, so you'll need your smartphone.

There will be forms to print and fill out prior to your arrival and returned at the tech inspection/registration process.

Questions? Want to volunteer and not drive? Contact autocross@silversageporsche.com


There are basic requirements for your car and a helmet is required. See below for details.

All Porsche models are welcome.


Register Now!

 Last day to Register is Monday, April 19
(early registration is highly encouraged)

Car and Helmet Requirements

Clean your car out! Remove all loose items from inside your car (you don’t need that water bottle getting wedged under your brake pedal). This is best done at home so you don’t have a pile of stuff on the ground at the event. If your floor mats are not firmly attached to the floor, remove them.

All lug bolts/nuts must be torqued to their proper setting. The battery is to be fastened down and the positive terminal covered.

Working seatbelts are required and will be worn during the event.

Approved helmets must be manufactured to the current rating (2020) or the two previous ratings (2015, 2010). Helmets built to Snell Foundation standards or other standards such as FIA 8860, SFI 31.1 and BS6658-85 Type A-FR are approved for use. Helmets may have Snell M (motorcycle) or K (kart) approval as well as SA (automobile racing). Any helmet approved for PCA Club Racing is permitted. DOT approved helmets are not acceptable. If you have questions about helmets, please contact Bob Kunz (autocross@silversageporsche.com).