Grand Rock


Grand Rock Co. has been building exhaust systems for over 30 years, specializing in heavy-duty trucks. Today, Grand Rock offers their experience and craftsmanship for diesel pick up trucks to give you that "BIG RIG" look. XDP offers Grand Rock stack kits that give you the choice of 4 types of chrome stacks in various diameters to choose from so you can get the look, sound, and quality you want. Grand Rock's Powerflow systems fit perfectly and include zinc-plated hangers as well as AccuSeal(tm) clamps to join the pipes together.
Displaying products 1 - 15 of 15 results
AccuSeal Aluminized Band Clamps
XDP Price: From $5.72 to $6.05
AccuSeal Aluminized Band Clamps
Universal - 3.5",4",5" x 1.25" Wide
AccuSeal Polished Stainless Steel Band Clamps
XDP Price: From $10.05 to $27.99
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AccuSeal Polished Stainless Steel Band Clamps
Universal - 4"-7" x 1.25" Wide
AccuSeal Stainless Steel Band Clamps
XDP Price: From $8.57 to $9.44
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AccuSeal Stainless Steel Band Clamps
Universal - 4",5" x 1.25" Wide
Grand Rock Chrome Exhaust Stack Tip
XDP Price: From $71.04 to $321.10
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Grand Rock Chrome Exhaust Stack Tip
Universal - Multiple Lengths, Cuts & Diameters (Sold Individually)
Grand Rock Hood Stack Kit
Grand Rock Hood Stack Kit
XDP Price: From $106.46 to $109.57
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Grand Rock Hood Stack Kit
Universal - All Makes & Models (Fabrication Required)
Grand Rock Hood Stack Tips
Grand Rock Hood Stack Tips
XDP Price: From $26.94 to $103.32
Grand Rock Hood Stack Tips
Universal - Multiple Diameters & Styles
Grand Rock Powerflow "Big Rig" Dual Stack Kit
XDP Price: From $266.54 to $397.20
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Grand Rock Powerflow "Big Rig" Dual Stack Kit
Universal - All Makes & Models (Fabrication Required)
Grand Rock Powerflow "Big Rig" Single Stack Kit
XDP Price: From $152.71 to $343.44
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Grand Rock Powerflow "Big Rig" Single Stack Kit
Universal - All Makes & Models (Fabrication Required)
Grand Rock Rubber Hump Hose HH-X90
Grand Rock Rubber Hump Hose HH-X90
XDP Price: From $10.12 to $17.78
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Grand Rock Rubber Hump Hose HH-X90
Universal - 4"-6"
Grand Rock V-Band Clamp VB-384F
List Price: $26.25
XDP Price: $22.31
You Save: $3.94 (15 %)
Grand Rock V-Band Clamp VB-384F
1994-1997 Ford 7.3L Powerstroke
Grand Rock V-Band Clamp VB-384G
List Price: $19.28
XDP Price: $16.39
You Save: $2.89 (15 %)
Grand Rock V-Band Clamp VB-384G
2001-2007 GM 6.6L Duramax
Grand Rock V-Band Clamp VB-429F6
List Price: $18.93
XDP Price: $16.09
You Save: $2.84 (15 %)
Grand Rock V-Band Clamp VB-429F6
2003-2007 Ford 6.0L Powerstroke
Grand Rock V-Band Clamp VB-429F7
List Price: $22.82
XDP Price: $19.40
You Save: $3.42 (15 %)
Grand Rock V-Band Clamp VB-429F7
1999-2003 Ford 7.3L Powerstroke
Grand Rock V-Band Clamp VB-450
List Price: $21.90
XDP Price: $18.62
You Save: $3.28 (15 %)
Grand Rock V-Band Clamp VB-450
2003-2004 Dodge 5.9L Cummins
Grand Rock V-Band Clamp VB-532
List Price: $23.63
XDP Price: $20.09
You Save: $3.54 (15 %)
Grand Rock V-Band Clamp VB-532
2004.5-2007 Dodge 5.9L Cummins