Grand Rock - 4" or 5" Resonators Choose Size:5” in/out 9” body 16.5” long 1"L x 6"W x 5

1"L x 6"W x 5

250 Lumens of Light Output

With Rebel Pro Red Metal Polish it's very easy to achieve that care

Beep Function

Grand Rock - 4" or 5" Resonators Choose Size:5” in/out 9” body 16.5” long 1"L x 6"W x 5Grand 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,