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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
Temporarily Out of stock - More on the way!

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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
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Boss
2
(Canada) | September 26th, 2008
Stripping down my new 08 F350- 6.4L Power Stroke. It has been hard to find an exhaust system for my PS and this one looks good and the first one I found with dimentions. I will let you know how it works. Doing the tranny right now then the injectors etc,
business owner
4
(tazewell,tn) | April 10th, 2009
I LOVE THIS KIT.super easy to install,and all the hardware was perfect,put on a 4x4 dually 00 dodge,eliminated the muffler and ran 6" curved tips,great kit easy to dyi the install.XDP,you guys rock,speedy turnaround and great support with a backorder item,great buying experiance all around thank you!
Strokin
5
(Laingsburg, MI) | May 11th, 2009
I add this kit and 6 in angle cut tips to my 2005 Power Stroke. The kit was very easy to install ( about 3-4hrs) and sounds great. Very Loud!! So you might want to keep your muffler on if you dont want it to loud.
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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

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  • UPDATE: Effective 6/1 Customer Service resumes normal business hours of M-F 8:30 – 9:00pm EST.
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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.