Powerflow Diesel Pickup “BIG RIG” Dual Stack Kits
Powerflow Diesel Pickup “BIG RIG” Dual Stack Kits. 2 diameters: 4 or 5 inches. Everything included except chrome stacks. This kit has a 4” ID inlet under the cab.
To complete the system you need a reducer 4”OD to your exhaust diameter and a pair of stacks. Covering diesel pickup applications from Ford, GM, and Dodge, GRAND ROCK makes high-performance single stock-exit systems, as well as the finest single and dual in-bed stack kits on the market. Application years range from 1994-2006 for the single under vehicle stock-exit kits, and can fit all years for the stack kits.
GRAND ROCK does not make replacement systems for 2007 and newer DPF-equipped vehicles. GRAND ROCK kits are made of corrosion-resistant 16-gauge US-made aluminized steel mandrel-bent tubing. Our single under vehicle stock-exit kits include a 304SS exhaust tip, and heavy-duty welded rod hangers and high-quality clamps.
Chrome stacks (sold separately) for the stack kits are show-quality genuine GRAND ROCK made-in-USA double nickel chrome, NOT cheap imported "flash chrome" that will peel, corrode, or turn color after a short while! You are buying the BEST!
- High Quality Craftsmanship
- 100% Stainless Steel
- Made in the USA
DPU-4Sk, DPU-5SK

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EXTRAS
Extras
The following products are meant to be used or paired with the product above.
Extras may also provide alternatives to the product you are seeking.

Powerflow Diesel Pickup “BIG RIG” Dual Stack Kits


Grand Rock - Kenworth QP Aero Single or Dual Mufflers

5", 6" or 7" Internal Quiet Performance (QP) Mufflers

Still looking for the perfect part? Having trouble finding it?
Call our product experts at 603-224-7370 and let us lend a hand.