Upgraded flexplate for high RPM (6000) and performance applications, ranging from street to extreme duty racingSFI spec 29.1 approved, NHRA and IHRA legal for all classesSingle bolt pattern design features 10" bolt circleFor internally balanced setupsBacked by the manufacturer with a 1 year limited warrantyAs engine performance levels increase, stronger flexplates become a necessity. This B&M flexplate is engineered to handle the extra stresses of high RPM and extreme duty applications. It meets the SFI 29.1 specifications for automatic transmission flexplates, and is legal for all classes in NHRA and IHRA. An SFI certification sticker is included (recertification is required every three years).