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Hot Diesel Performance Products
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 $464.00
On SALE for only $399.95

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
Remember Guys Size DOES Matter!

TIP STYLE

Vehicle Make

Need 5" under the bed?

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.


Stacks make your truck look AGGRESSIVE. Make them yours today!

  • 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
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.

These exhaust stacks are almost constantly on back order with the manufacturer and orders are first come first serve with the manufacturer so order yours today and be first in line! NOTE: Most 5 and 6 inch kits now ship within two weeks! All 7 inch stacks are special ordered. Please allow 4 to 6 weeks for shipping on 7 inch.

"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!" - john


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Read What Parleys Customers Are Saying:
"I received my smart box for my 2006.5 tdi and am extremely happy with the upgrade. It made a world of difference. I dealt with Daniel and he did a great job helping me. I just wanted to let you know I am completely satisfied with the purchase."
" -Steve Blass, June 2007


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