Pit Stop USA Sprint Car Series Rule Additions
Attention all Pit Stop USA Winged 360’s and Spec Sprint competitors. Petaluma Speedway’s approved mufflers for the 2019 season are the Flowmaster 53545-10 with turn downs or the Large Spin Tech Muffler (Super Stock 1000 part #1545) with turn downs.
Additionally, the Pit Stop USA Winged 360’s will be required to have kingpin tethers installed by May 1, 2019
The following kingpin tethers have been approved for competition:
Amick #AA-103-(length)
Crow #SP-54 or #SP-57
Buttlerbuilt #BBP-4924
Both rule books have been updated to reflect these changes.
