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PERFORMANCE MUFFLERS by Aero Exhaust (Available in 2.5, 3, 3.5, 4, and 5 inch resonated and non resonated versions) (Starting at $111.50)
Only $123.89
On SALE for only $111.50

PERFORMANCE DIESEL TUNER | Diablosport Predator Tuner (Duramax, Powerstroke & Cummins).
Only $355.50
On SALE for only $319.95

CHROME EXHAUST STACKS by Grand Rock, PowerFlow Dual Stack Kit With Tips
Only $649.99
On SALE for only $529.99

Diesel Performance Categories
CHROME EXHAUST STACKS by Grand Rock, PowerFlow Dual Stack Kit With Tips
Add To Cart For Bottomline Price!

Item Number
GR-STACKS

Price
$649.99 Reg.
$529.99 SALE

Quantity:

SIZE

TIP STYLE

Vehicle Make

Need 5" under the bed?
this is for trucks that currently have a 5" exhaust already

Need a reducer?
the under the bed connection is 4" (if your exhaust is smaller you need a reducer)

Add Internal Mufflers?
This is for a pair of internal mufflers.


We have kits for ALL Ford, GM, Chevy and Dodge applications, Gas or Diesel. If you have a question about your stack kit, give us a call!

Whether you are heading to the drag strip, tractor pulls, dyno event or just cruising Main Street YOUR TRUCK NEEDS STACKS!

  • Maximum Exhaust Flow!!
    - Pull that hot air away from your engine.
  • Increased Fuel Mileage!
    - Smile each time you fill Up!
  • Extra Horsepower Gains!
    - Power There When You Absolutely Need It.
  • Allows You To Safely Run Extra Horsepower!!
    - All the Performance Without the Hassle.
  • Free Shipping with UPS Ground.
    - Next Day - Overnight Available. Just Call!



    Order Securely Online
    Or by Phone: 1-801-938-4891
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Grand Rock introduces their PowerFlow Chrome Dual Stack Kits. A high performance diesel exhaust system with the "Big Rig" look and style for your truck. PowerFlow Dual Stack Kits are a true 5" or 6" diameter from cat to stack exhaust system, with a 5" or 6" diameter hole thru the bed required. These chrome kits were desinged as a "No Muffler" exhaust system and feature AccuSeal clamps for superior joint sealing. All chrome stacks are 36" in length and feature high quality chrome plating, chromed rain caps and stack sheilds sold seperately. Chromed heat shield for the bed cross-over pipe not included. 4 5 6 & 7 inch stack sizes available in straight, curved, mitre/angle, and bull hauler/extended curve cuts for Ford Powerstroke, Dodge Cummins and Chevy/GMC Duramax Trucks and any other truck on the market. This is a universal kit. Built in the USA. 1 Year Limited Warranty. Have any questions on install? Click Here

These exhaust stacks are almost constantly on back order with the manufacturer and orders are first come first served with the manufacturer so order yours today and be first in line!

Please note: Your Grand Rock stack kits will be made-to-order, so delivery time for your stacks can vary. 4,5 and 6 inch kits usually ship within a week or two, while 7 inch kits can sometimes take up to four weeks to ship, but they are usually in stock and will usually ship within a few weeks.



5 of 5 Perfect

John from Florida
"Hi this is john i just bought exhaust stacks from you guys and i love it, every where i go people look and ask me about it, i like the sound of it. thank you so much i'm sure i will buy stuff for my dodge truck from you guy's in the future "parleysdieselperformance is the best"!!!!! thanks guys keep up the GREAT!! work!"

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12 of 14 customers found this review helpful.

5 of 5 Perfect

Richard M. from North Carolina
"Hey guys just wanted to let you know what a lifesaver the stacks I ordered are. The track officials at our local 1/8th mile track were getting sick of me laying smoke down so these stacks have worked perfect to get the smoke up and out of the way. The track officials haven't bothered me since I put them on, thanks guys."

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12 of 14 customers found this review helpful.

5 of 5 Perfect

Gerald S. from Oklahoma
"I thought I had every accessory known to man on my 6.0L Powerstroke until I saw these! I had to get them, since putting them on I have definiately seen an increase in power and a decrease in EGT's. You guys ROCK!"

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12 of 14 customers found this review helpful.


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All Prices in US Dollars

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100% CUSTOMER SATISFACTION

"The Quadzilla Stealth Tuner that I bought from you guys is AMAZING! It feels like I DOUBLED my horsepower!"

-Charles St. Claire, Knoxville

"The only thing my truck was missing was the sound of a mean,high performance vehicle and the Aero Turbine Muffler got me there!"

-Ted Lee, Sacramento, CA


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