Cognito SM Series Limited Dynamic Geometry Traction Bar Kit 20-25 6.6L GM 2500/3500 | 0-4" Rear Lift DDP-FASF17180F140G Up to four custom pre-set

Up to four custom pre-set modes

you still retain comfortable drivability

An additional auxiliary air inlet is available for use with an optional Dynamic Air Scoop (P/N 54-73006-S) that installs with zero hardware

the truck equipped with our competitors exhaust brake traveled 450 ft MORE and was still moving at a dangerous 30 MPH

Cognito SM Series Limited Dynamic Geometry Traction Bar Kit 20-25 6.6L GM 2500/3500 | 0-4" Rear Lift DDP-FASF17180F140G Up to four custom pre-setSure, this set of traction bars look pretty impressive under your L5P Duramax, but its so much more than that! As power increases and trailer weights get heavier, axle wrap becomes a major issue on these trucks, causing a hopping that makes driving difficult and can kill u joints and other vehicle components. Eliminate axle wrap while not destroying your suspension's ability to articulate with this kit from Cognito. Cognito SM Series Limited Dynamic