Westin 2007-2013 Chevy Silverado 1500 Crew Cab PRO TRAXX 4 Oval Nerf Step Bars - SS Engine Components>Lifters If your factory plastic degas

If your factory plastic degas tank is leaking

ensuring flexibility in setup

Made from cast aluminum

2 efficient filtering out all of the most harmful air contaminants while allowing maximum flow

Westin 2007-2013 Chevy Silverado 1500 Crew Cab PRO TRAXX 4 Oval Nerf Step Bars - SS Engine Components>Lifters If your factory plastic degasWestins Pro Traxx 4 Oval Nerf Step Bars feature a 4in. oval tube with a heavy duty step pad that provides a wider and more secure step area. They feature 30 factory style bends that have seamless domed ends so there are no end caps or exposed bolt heads. Applications are bolt on installation. Installation Instructions