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Magnaflow Duramax Pro
We’ve all heard that loud diesel exhaust that sounds impressive, at least to motorheads. There’s no doubt that this type of pipe is not overly restrictive to the system’s air flow, but your significant other and your neighbors may not appreciate such an exhaust system if they get to hear it every day.
Recently my uncle bought a pickup where the previous owner had shortened the exhaust to just past the cab. It sounded cool for a couple days but the novelty soon wore off. I installed a Magnaflow exhaust system on his Power-Stroke-powered Ford and ever since then it’s been a favorite of mine for the sound quality and dyno-proven performance.
Magnaflow builds their exhaust systems to be quiet enough at idle and cruise to let you enjoy conversations and music, but step on it and it comes to life with a healthy exhaust note that indicates that the entire system is breathing easier and freeing up power.
For improved breathing on a 2006 GMC Sierra Duramax, we choose Magnaflow’s Pro performance system, which features a satin finish, 100% stainless steel muffler with stainless steel band clamps with mandrel-bent stainless steel tubing. MagnaFlow says their mufflers are “100% stainless steel and lap-joint welded for solid construction and rugged reliability even in the most extreme conditions. They feature a free-flowing, straight-through perforated stainless steel core, stainless mesh wrap and acoustical fiber fill to deliver that smooth, deep tone.”
We opted not to add a polished stainless tip to this work truck, however Magnaflow has optional tips in a variety of styles to customize the look of your exhaust system.
Exhaust systems like the one featured here can free up some horsepower by themselves, however when used in conjunction with other modifications, such as improved intake flow and an engine programmer, it can really shine.