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Grand Rock Dual Exhaust Stack Kit 4" Inlet For 6 Inch Tips

Part# DPU-6SK
$424.58 Now $385.99
Qualifies for FREE SHIPPING

AVAILABILITY: Ships from Manufacturer

Not Available to Ship to California

Add a Reducer If Your Truck's Exhaust is Smaller Than 4"

Product Description

Grand Rock introduces their PowerFlow Dual Stack Y Pipe Kit. A high performance exhaust system with the “Big Rig” look and style for your truck. Take a big bold step up in looks and performance with a dual exhaust stack kit. (tips sold separately)

Whether you’re heading to the drag strip, tractor pulls, dyno event or just cruising Main Street, Your truck needs Stacks! These kits fit all Ford, GM, Chevy and Dodge applications, or Gas. Not just for looks, these stack kits are functional too. Now you can route exhaust fumes above and away from livestock, car haulers, and cargo where smoke is unwanted.

Key Features:

  • Maximum Exhaust Flow! Pull that hot air away from your engine.
  • Increased Fuel Mileage! Smile each time you fill Up!
  • Extra Horsepower Gains! Power When You Absolutely Need It.
  • Precise fit, no need to hammer or adjust anything during installation
  • All brackets are zinc plated to prevent rust
  • Save Big with Free Shipping on ALL Grand Rock Stack Kits!
  • Re-metalized, coated weld area, no premature rust on seams
  • AccuSeal clamps won’t crush your pipes, leaving exhaust joints serviceable
  • All tubes are de-burred and cleaned; no sharp edges or saw chips
  • May not be compatible with other manufacturer’s stack tips

This PowerFlow Dual Stack Kit is a full 4 Inch diameter under the bed with 5 Inch diameter from Y-Pipe to the base of the stack tip in the truck bed. Grand Rock’s kits were designed as a “No Muffler” exhaust system and feature AccuSeal clamps for superior joint sealing. Grand Rock chrome stack tips (Sold Separately) are 36 Inches in length and feature high quality triple chrome plating for a killer look that lasts. For reference, a 36" stack will be about even with the top of your truck cab. Taller 48 and 60 Inch tips are also available. Please call for pricing. Other manufacturer’s stack tips may not be compatible with Grand Rock’s Y Pipe kit. The stack tips used must have a 5" O.D. bottom.

Chrome 6 Inch Rain Caps for straight-cut stack tips look sharp and keep the rain out. To protect the contents of your truck bed, choose from MBRP stack in-bed diamond-plated covers or Grand Rock chromed T-Pipe Heat Shields, each sold separately.

6 inch stack tips are available in straight, curved, mitre/angle, Aussie, and Bull Horn cuts. This is a universal kit. Built in the USA. 1 Year Limited Warranty. Have any questions on what’s involved with an install? Go to our videos section to see a complete installation.

This is a universal kit. Built in the USA. 1 Year Limited Warranty.

Please note: Your Grand Rock stack kits will be made-to-order at Grand Rock’s facility in Ohio, so delivery time for your Y Pipe kit can vary. Grand Rock Y Pipe kits usually ship within 5-10 days and delivery is via FedEx Ground.

Click here for California Proposition 65 Notice

This product can expose you to chemicals which are known to the State of California to cause cancer. For more information go to