COMP Cams Bronze Shim for Upper Gear #6100 G-Force Racing Gear When you install a set

When you install a set of BBK Performance long tube exhaust headers on your muscle car or truck the O2 sensors are relocated on the header that is no longer in the factory location and the factory O2 sensor connectors will not reach to connect any longer

216/224 Duration

Under Header

Made of billet Aluminum

3 in Drop Spindle

COMP Cams Bronze Shim for Upper Gear #6100 G-Force Racing Gear When you install a setCOMP Cams Bronze Shim for Upper Gear #6100 6100BS Bronze Shim For Upper Gear The COMP Cams philosophy has never changed: make the highest performing products possible and lead the industry in technological development. One thing COMP Cams has never forgotten: Performance is defined by what happens out on the race track. Because no matter what happens on a dyno or in a computer model, if that theoretical performance doesn't translate into real life