The Boise Muffler Gold Cup Series presented by NAPA Auto Parts continues on Sunday, Sept. 20, tied in conjunction with the 25th Anniversary Les Schwab Tires Fall Best of Detroit race presented by Kidd Performance & Dyno.
Gold Cup racing will be contested in a variety of bracket divisions. Super Pro, Pro, Sportsman, Bike/Sled, Jr. Dragster, Jr. Street and The Comfort Source Pro Comp classes. The race will also include the final stop in the Snake River Speed Shop Idaho Small Tire Series.
Racers will also have an opportunity to run in the Chevy Cup, Ford Cup, B.O.P Cup and Mopar Cup. The overall Detroit winners will square off a runoff to decide the ultimate four-way champion.
Sunday will offer the final race in the NHRA Division 6 Land of the Leaders Challenge.
Additionally, a show `n shine will also be offered for all Detroit brands in the upper pit area.
Save by registering online today.
CLASSES |
|---|
| Chevy Cup |
| Ford Cup |
| Buick-Olds-Pontiac (BOP) Cup |
| Mopar Cup |
| Member Track Madness 4-way runoff at day’s end (individual Detroit champions) |
| Super Pro (eighth-mile) |
| Pro (9.00 – 13.99, quarter-mile) |
| Sled/Bike (7.50 to 13.99, quarter-mile) |
| Sportsman (11.60 and slower, quarter-mile) |
| Junior Dragster (6 – 17 year olds, eighth-mile) |
| Junior Street (13 – 16 year olds, eighth-mile) |
| Pro Comp (7.00-9.50, pro .4 light, quarter-mile) |
| Idaho Small Tire (link, eighth) |
RACE FEES |
|---|
| Super Pro: $95 (Day of event $105) |
| Pro: $75 (Day of event $85) |
| Sled/Bike: $55 (Day of event $65) |
| Pro Comp: $125 (Day of event $135) |
| Idaho Small Tire: $150 (Day of event $170) |
| Sportsman: $40 (Day of event $50) |
| Jr. Dragster: $40 (Day of event $50) |
| Jr. Street: $25 (Day of event $35) |
| Sunday Detroit Cup entry (choice of Chevy, Ford, Mopar, BOP): $40 (Day of event $50) |
| Test only (throughout morning and afternoon): $75 (Day of event $85) |
| 2026 permanent number/license card: $10 |
FEES |
|---|
| Adult Pit-Side pass: $15 (or $18 at the gates) |
| Ages 6-12: $5 |
| Ages 5 & Under: Free |
| Detroit Show Entry: $15 |
RACE SCHEDULE |
|---|
| Early Bird Pit Parking on Sat., 9/19: 3-5 pm |
| Sunday opens: 8:00 am |
| Time Trials: 9 am |
| Racing: 2 pm |
| Concludes: 6:30 pm |
(click logo for tickets)
Defending Fall Best of Detroit champions include:
- Super Pro
John Shaffer 
Pro
Richard Rush- Idaho Small Tire
Rick Gandee - Sled/Bike
Roy Barrera - Sportsman
Payton Shaffer - Pro Comp
Dustin Lee - Jr. Dragster
Madison Slavik - King of the Fall Detroit Runoff, Ford Cup
Cameron Dill - Mopar Cup
Aaron McCoy - B.O.P. Cup
Angie Thomas - Chevy Cup
Robert Glembocki - Jr. Street
Race Fuller
SPORTSMAN RACER TECH CARD
(Fill-In and Printable Tech Card link)
TECH CARD: As a convenience to both you and Firebird’s tech team, please completely fill out the .pdf form on your computer (click on hyperlink above, both sides) and print. Please bring printed copy to this event to expedite the inspection process.
In the event of inclement weather, updates will be available on this site and on our Facebook page.
For more event information, email: [email protected]