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GRAND ROCK
![Elbow, 5 Inch Size, 45 Deg., 09 x 09 Inner Outer Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Elbow, 5 Inch Size, 45 Deg., 15 x 15 Inch Outer Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Elbow, 5 Inch Size, 45 Deg., 18 x 18 Inner Outer Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Elbow, 5 Inch Size, 60 Deg., 10 x 10 Outer Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Elbow, 6 Inch Size, 45 Deg., 15 x 15 Inner Outer Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Muffler, 8.5 x 29.5 Inch Size, 3.5-4 Inch Inner Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Muffler, 10 x 15 x 44 Inch Size, 5-6 Inch Inner Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Muffler, 10 x 36 Inch Size, 5 Inch Inner Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Muffler, 11 x 42 Inch Size, 4 Inch Inner Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Muffler, 10 x 44.5 Inch Size, 5-6 Inch Inner Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Muffler, 11 x 36 Inch Size, 5 Inch Inner Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Muffler, 12 x 35 Inch Size, 5 Inch Inner Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Shield, 48 Inch Size, 270 Deg., Vertical Slots](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Pipe, 4 Inch Size, 4-Bend Inner Outer Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Stack Exhaust Miter, 5 Inch Outer Dia. x 24 Inch Size, Chrome](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Stack Exhaust Miter, 5 Inch Inner Dia. x 48 Inch Size, Chrome](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Stack Exhaust Miter, Angle Cut, 6 Inch Inner Dia. x 114 Inch Size, Chrome](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Stack Exhaust Miter, 6 Inch Inner Dia. x 120 Inch Size, Chrome](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Stack Exhaust Miter, 6 Inch Inner Dia. x 72 Inch Size, Chrome](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Elbow, 5 Inch Size, 20 Deg., Inner Outer Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Clamp, 3.5 Inch Size, Aluminized, 10 Piece, Pre-form](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Shield Kit, 5 x 48 Inch Size, Vertical, Stainless Steel](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Reducer, 5 Inch Inner Dia. x 4 Inch Outer Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Reducer, 7 Inch Outer Dia. x 5 Inch Outer Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Rubber Elbow, 7 Inch Size 53 Deg. Red, Rubber](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Reducer, 4.5 Inch Outer Dia., 5 Inch Inner Dia., Rubber](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Connector, 4 Inch Inner Dia. x 24 Inch Size, Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Stack Exhaust, Straight, 3.5 Inch Outer Dia. x 08 Inch Size, Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Stack Exhaust, Straight, 4 Inch Inner Outer Dia. x 120 Inch Size, Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Stack Exhaust, Straight, 4 Inch Outer Inner Dia. x 60 Inch Size, Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Stack Exhaust, Straight, 5 Inch Inner Outer Dia. x 72 Inch Size, Chrome](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Tube, 6 x 120 Inch Size, Outer Dia., Chrome](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
Tube, 6 x 120 Inch Size, Outer Dia., Chrome
![Straight Cut, 6 Inch Inner Dia. x 96 Inch Size, Chrome](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Stack Aussie, 6 x 24 Inch Size, R5 Inch Outer Dia., Chrome](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Stack Aussie, 6 x 60 Inch Size, R5 Inch Outer Dia., Chrome](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Elbow, 3 Inch Size, 90 Deg., Outer Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Straight, 4 Inch Size, 2-Bend Outer Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Elbow, 4 Inch Size, 2-Bend Inner Outer Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Flare, 3.5 Inch Size, 2-Bend Outer Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
![Stack Miter Exhaust, 4 Inch Size, 3-Bend Outer Dia., Aluminized](https://b2bdecdn.raptorsupplies.com/pub/media/catalog/product/100x100/NOTAVAIL.webp)
About Grand Rock
Since 1974, Grand Rock has been manufacturing quality exhaust systems to maximise the performance of trucks. Headquartered in Painesville, Ohio, USA, the brand benefits the automotive industry. The brand's catalogue includes bellow pipes, mufflers, air intake pipes and OE aftermarket exhaust systems. Grand Rock offers chrome and aluminised exhausts in curved, miter, bullhorn, straight, aussie, west coast curve and brute variants. The brand's OE aftermarket exhausts are used by renowned companies like Ford, Volvo, International, Kenworth and Sterling to enhance their vehicles' torque and horsepower.
Customers searching for the brand's exhaust systems can look for the model, item or cross-reference number on our website. We also source direct alternatives for various old and discontinued products with no minimum order quantity required for placing orders.