RaceCom Garmin Catalyst (Male) to IMSA (Female) Adapter Cable Side Skirts The header assembly itself is

The header assembly itself is sold standalone — fasteners and sealing materials are not included

backpressure reduction

this system delivers a substantial weight reduction

C2500 Suburban

Installation uses your standard lug wrench or socket — same process as factory nuts

RaceCom Garmin Catalyst (Male) to IMSA (Female) Adapter Cable Side Skirts The header assembly itself isGarmin Catalyst to IMSA Female Adapter Cable This cable will connect your Garmin Catalyst Driver Performance Optimizer to your IMSA helmet cable. Includes 3. 5mm connector on one end and female IMSA connector on the other. Made in the USA from thin ROHS compliant cable.