3/17/2026

As the result of runs under the Automatic Horsepower Factoring System (AHFS) 1.20-second under policy at the NHRA Division 2 event, the following change has been made.

The horsepower rating for 2015 Dodge Challenger Drag Pak, entries with the 354 cubic inch engine and a factory rating of 540 currently rated at 540, has been increased by nine horsepower, to 549 horsepower: for Stock Eliminator automatic.

NHRA's 2026 Automatic Horsepower Factoring System outlines that any run of 1.20-seconds or more under the index will receive an immediate index decrease or horsepower increase. These changes are effective March 17, 2026.