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USD 351.25 351.25 489.46
Part #:

Grand Rock Powerflow "Big Rig" Dual Stack Kit

Universal - All Makes & Models (Fabrication Required)
Part #:
★★★★★ ★★★★★ 8 Reviews
FROM 351.25
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Description

Powerflow "Big Rig" Aluminized Stack Kit

  • Easy-to-install kit gives your pick-up that "BIG RIG" look!
  • Great flow - improved performance.
  • Functional - Routes exhaust fumes above and away from livestock, car haulers, and cargo where diesel smoke is unwanted.
  • Select many different exhaust stack styles and lengths to use with this system (stacks not included with kits)

 Part Number

 Diameter of Stack Hardware

 Base Diameter X2

 Inlet Diameter

 DPU-4SK

 4"

 4"

 4"

 DPU-5SK

 5"

 5"

 4"

 DPU-6SK

 6"

 5"

 4"

 DPU-7SK

 7"

 5"

 4"

 DPU-5SK-5I

 5"

 5"

 5"

 DPU-6SK-5I

 6"

 5"

 5"

 DPU-7SK-5I

 7"

 5"

 5"

NOTE: On ALL Stack Kits that are 6" or 7", order SK, SP or SBH stacks. These are reduced to 5" OD at the bottom.

  • Kit includes 2 bright stainless unistrap clamps to secure stacks
  • Quality AccuSeal heavy gauge band clamps included in kits

Everything included except chrome stacks. Down pipes, Mufflers and Intermediate pipe not included with these kits.

Fitment Note: The Grand Rock Stack Plumbing is designed specifically for Grand Rock stack tips and has a 5 ID inlet (where stack attaches). If you are not using Grand Rock stack tips, please use the measurements provided to confirm your stack tip will fit the Grand Rock plumbing.

Product Options

PART NUMBER PART NUMBER ON CHART BELOW:
DPU-4SK DPU-4SK
DPU-5SK DPU-5SK
DPU-6SK DPU-6SK
DPU-7SK DPU-7SK
DPU-5SK-5I DPU-5SK-5I
DPU-6SK-5I DPU-6SK-5I
DPU-7SK-5I DPU-7SK-5I

Specifications

  • Manufacturer Name Grand Rock Exhaust
  • Shipping Weight 70.00 lb.
  • Fuel Type Diesel
  • Prop 65 WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov

Reviews

★★★★★ ★★★★★
4.5/5 Stars out of 8 Reviews
5
6
4
1
3
0
2
1
1
0
Stack kit and 5 inch aussie stacks
5
(Fremont, OH) | May 4th, 2011
Bought this for my 93 6.5 chevy. Makes it look like a whole different truck. Pretty easy to install but would recomend to have a friend to help you with setting the pipes into the bed of the truck. Over all im very happy with the product. Next comes the intake and turning the pump up. Thanks XDP and Grand Rock
Awesome!
5
(Jesup, Iowa) | June 13th, 2011
I bought this stack kit a month ago. Wasnt sure if I wanted to put them on or not. I decided to just this weekend and WOW! They really gave my 2002 F350 crew cab, long box, that big rig look! My 7.3 turbo wine is awesome! If you like a loud truck this kit is for you. Everyone asks me who did the great job of putting them in. I just say...your talking to him. XDP has been great to deal with and have the best prices. I cant wait to get my ball berring turbo from them one of these days when they have their specials going again. Thanks XDP! Dave
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Questions and Answers

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Most Popular Questions

How much fabrication does this kit require? What other parts are needed to install?
View Staff Answer 
Answer

The fabrication required is not usually needed on the kit, but actually the application in which you’re installing the stacks. All stack piping, heavy gauge band clamps, and your stainless unistrap clamps (to secure the stacks) are included to install the stack kit. Generally there is very little fabrication required. *Stacks are sold separately

XDP continues to closely monitor the COVID-19 (Coronavirus) outbreak. As an integral part of the automotive supply chain, at this point all call centers and distribution centers remain fully operational to ensure we keep vital service components flowing to vehicles used in transport of goods and emergency response. To ensure the health of our employees, families, and customers, we have made the following procedural changes:

  • UPDATE: Effective 6/1 Customer Service resumes normal business hours of M-F 8:30 – 9:00pm EST.
  • Effective 3/18 we have decided to temporarily close both of our retail stores in NJ and NV.
  • Our technical sales team remains available Mon-Fri 8:30am-9pm and Saturday 10:30am-7pm EST.
  • All employees have been encouraged to follow the CDC's recommendations at home and in the workplace.
The circumstances of this virus are fast moving, as such, we will continue to update you with any further operational adjustments as needed. As always, we value your business and appreciate your patience as we manage this situation together.