• Universal 5" polished T304 stainless steel Optimal Flow muffler for diesel trucks including Duramax and Powerstroke engines.
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Universal 5" Optimal Flow Muffler

Universal 5" Optimal Flow Muffler

$175.00
$175.00
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Description

Straight-through flow, T409 polished stainless, non-directional design. The Universal 5" Optimal Flow Muffler fits any 5" aftermarket straight pipe exhaust system on Powerstroke, Cummins, and Duramax trucks, with internal stainless steel mesh and fiberglass to absorb resonance and reduce back pressure.

On the dimensions: it runs a 5-inch inner diameter at both the inlet and outlet, an overall length of 20.25 inches, a 14-inch body, and an 8-inch round body size. The straight-through, non-directional design means you can install it in either orientation, and it's built to cut back pressure rather than choke flow.

For installation, measure and cut your current exhaust so it fits. Welding it in place is recommended, though you can clamp it on instead. Clamps are not included. It fits all Powerstroke, Cummins, and Duramax models running a 5" aftermarket straight pipe setup, and Alaska, Hawaii, and some Canadian locations may carry additional freight.

Straight-through flow, T409 polished stainless, non-directional design. The Universal 5" Optimal Flow Muffler fits any 5" aftermarket straight pipe exhaust system on Powerstroke, Cummins, and Duramax trucks, with internal stainless steel mesh and fiberglass to absorb resonance and reduce back pressure.

On the dimensions: it runs a 5-inch inner diameter at both the inlet and outlet, an overall length of 20.25 inches, a 14-inch body, and an 8-inch round body size. The straight-through, non-directional design means you can install it in either orientation, and it's built to cut back pressure rather than choke flow.

For installation, measure and cut your current exhaust so it fits. Welding it in place is recommended, though you can clamp it on instead. Clamps are not included. It fits all Powerstroke, Cummins, and Duramax models running a 5" aftermarket straight pipe setup, and Alaska, Hawaii, and some Canadian locations may carry additional freight.

  • 5 stars: 5 (83%)
  • 4 stars: 1 (17%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
C
Chad Hansen
Good looking muffler

Optimal Flow 5” muffler showed to the house in a timely material (really quick shipping). Muffler looks great seems like it will be just enough to make the truck not to loud under a load. Now to purchase the rest of the parts to use it.

Chad Hansen review photo Chad Hansen review photo
R
Ronald Starr

Universal 5" Optimal Flow Muffler

P
Pat Lapping

Good

D
DEWAYNE HARDING
Exhaust

Very satisfied!

L
Larry McEntire
Drone b gone!!!

I wish I had gotten the optimal flow muffler with my initial order. After driving the truck a couple of weeks the drone in the cab was excruciating. After installing the optimal flow muffler, no more drone noise. Exhaust still sounds deep and throaty and without power loss. I highly recommend getting this muffler.

M
Matt Vossmer
Muffler is awesome!

The muffler was easy to install an fit great. It was just the right amount of sound I was looking for!

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