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By Grand Rock
Improve Fuel Mileage! Reduce Exhaust Gas Temperatures (EGTs)!
Kits include everything needed to mount the stacks and connect to your existing exhaust system. Make your Powerstroke, Cummins or Duramax look like a
They use a 4" T-Pipe in the bed of your the truck so only one hole needs to be cut. A 4" 90 degree bend connects to your stock (or aftermarket) exhaust between the cab & truck bed. A small section of stainless flex pipe goes between the 90 degree elbow and the existing exhaust on your truck, to allow the bed and cab to flex without causing damage to the exhaust.
Reducers are included for trucks that have 3" & 3.5" exhausts, so everything you need is included! Exhaust pipes are made of mandrel-bent aluminized steel. With 304 stainless flex-pipe and heavy duty exhaust zinc coated.
4" Chrome Stacks can be ordered in three styles:
Raw Stacks are also available, please call for pricing.
** Note - Under bed T-pipes are not available, due to fuel tank clearance issues. **
There is a 2-3 day lead time on this part before item ships.
36" Stacks are standard and protrude above the cab 1-2" in most cases, or about 46" above the bed floor.
48" Stacks are optional and the top of the stack will be about 58" above the bed floor.
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