Grand Rock - 4" or 5" Y-Pipe (Type C) Aluminized with Plate page12 Chrome air valve set for

Chrome air valve set for train horns

Chrome plastic housing available separately

then vacuum

all-in-one lighting solution

Peterbilt 379/389 Flat Top 13

Grand Rock - 4" or 5" Y-Pipe (Type C) Aluminized with Plate page12 Chrome air valve set forGrand Rock 4" or 5" Y Pipe (Type C) Aluminized with Plate Grand Rock 4" or 5" Aluminized Y Pipe (Type C) 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