Based on Pro Stock Motorcycle performance data, the NHRA Technical Department has made the following parity changes. These rule changes will go into effect immediately. NHRA reserves the right in the future to make additional rule changes to control performance and maintain parity in the category.

Suzuki (must be NHRA-accepted)
(up to 113 cid, 4-valve V&H Head)- 640 645 pounds
(up to 113 cid, 4-valve Monster Head)- 630 625 pounds