5" Peterbilt 359 379 389 Glider OG Old School Exhaust Kit by Dynaflex Chrome Modern Design Meets A Classic Look! Premier Quality Stacks With A Look That Is Unmatched! 5" Dynaflex OG Chrome Exhaust Kit Fits Peterbilt 379 and 359 Trucks Also Fits Peterbilt 389 Glider Kit Trucks Features 5&qu... See More