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USD 192.05 192.05 462.37
Part #:

Grand Rock Powerflow "Big Rig" Single Stack Kit

Universal - All Makes & Models (Fabrication Required)
Part #:
FROM 192.05
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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 (stack not included with kits)

 Part Number

 Diameter of Stack

 Inlet Diameter

 SPU-4SK

 4"

 4"

 SPU-5SK

 5"

 4"

 SPU-6SK

 6"

 4"

 SPU-7SK

 7"

 4"

SPU-5SK-5I

5"

5"

SPU-6SK-5I

6"

6"

SPU-7SK-5I

7"

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

Everything included except chrome stack. 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 FROM CHART BELOW:
SPU-4SK SPU-4SK
SPU-5SK SPU-5SK
SPU-5SK-5I SPU-5SK-5I
SPU-6SK-5I SPU-6SK-5I
SPU-7SK-5I SPU-7SK-5I

Specifications

  • Manufacturer Name Grand Rock Exhaust
  • Shipping Weight 60.00 lb.
  • Fuel Type Diesel
  • Prop 65 WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov

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Questions and Answers

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Most Popular Questions

I’m not understanding… I have 4" pipe on the truck now, but I want a 6" stack. Should I order kit SPU-6SK?
View Staff Answer 
Answer

Correct – You’d use the chart above to determine the inlet diameter, then choose the diameter of the stack you’d like. Once you have the proper Inlet and Diameter of Stack, you’d purchase the corresponding Part Number. (Example: SPU-6SK – This item number is for trucks with a 4” exhaust that plan to install a 6” stack.)

** Everything included except chrome stack.

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.