Grand Rock - 4" or 5" Y-Pipe (Type B) Aluminized with Plate Diameter:5 Inch Diameter Spring loaded quick-release warning flag

Spring loaded quick-release warning flag constructed of 303 stainless steel

The Peterbilt 379 Wide Cowl Extensions are made of 100% American made Stainless Steel & designed to fit Peterbilt 379 models

and both off

Does not fit Flat Top or Daycab

Sold in a single set (3 Piece Mounting Brackets & hardware)

Grand Rock - 4" or 5" Y-Pipe (Type B) Aluminized with Plate Diameter:5 Inch Diameter Spring loaded quick-release warning flagGrand Rock 4" or 5" Y Pipe (Type B) Aluminized with Plate Grand Rock 4" or 5" Aluminized Y Pipe (Type B) with Plate Aluminized Finish Available in 4 inch or 5 inch diameter Sold Individually Made in America Grand Rock Company is a major manufacturer and warehouse of superior exhaust systems for the aftermarket. Since 1970 Grand Rock has had its sights set on providing the customer with only the best parts and material in the industry. Through