ARP 621-1000 SAE Bolt Kit 1/4-20 x 1.000 hex SS bolts ymm_41 we recommend remapping the ECU

we recommend remapping the ECU in order to prevent potential »check engine light« warning signals

Designed to match Akrapovic carbon fibre diffuser

Hardened parallel-ground washers are included with each kit

Specifications Socket Size(s) 3/8 12pt UHL 1

FITMENT NOTICE: This product does not fit 2021 vehicles equipped with an Otto/gasoline particulate filter

ARP 621-1000 SAE Bolt Kit 1/4-20 x 1.000 hex SS bolts ymm_41 we recommend remapping the ECUSpecifications Socket Size(s) 5 16 hex UHL 1. 000 Thread Length 1. 000 Grip Length n a Thread Diameter Pitch 1 4 20 Grip Diameter 1 4 Wrenching 5 16 Head Height 0. 255 Collar Diameter 0. 515