Grand Rock - 4" or 5" Resonators Choose Size:5” in/out 9” body 16.5” long making the kit ideal for

making the kit ideal for both indoor and outdoor use

Designed to hold one standard plate (13

Stop using grease

Grand Rock - 2 Position Heat Diverter Tube

Grand Rock - 4" or 5" Resonators Choose Size:5” in/out 9” body 16.5” long making the kit ideal forGrand Rock 4" or 5" Resonators Grand Rock 4" or 5" Resonators Available Sizes: 4 inches In Out by 16. 5 inches long 9 inch body 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 excellent customer service, rapid delivery,