They require a standard wire feed mig welder with regular mild steel wire. The Slash Cut weld on tips are a chrome plated stainless steel 12" long and 3.5" round. So, if you want to get that hot rod sound and add some horsepower, then these Flowmaster mufflers have you covered. They create a beautiful hot rod sound, along with increased horsepower and gas mileage. These Flowmaster mufflers far exceed older models on Dyno tests. I have the original 40s now through a 2.5 true dual system (mild 350 with Hooker comp headers). sandiego74 Veteran Member Lifetime Gold Member. These mufflers feature a design patterned after Flowmaster's race mufflers. Super 44 Discussion in Engine Topic started by sandiego74, Jun 20, 2012.
They help create even more horsepower with less interior noise and a deeper exterior sound. These Super 40 Flowmaster mufflers significantly outflow the older two-chamber mufflers. Higher flowing and longer lasting mandrel bend pipe is included. That equals more power and better fuel economy ! This kit has 2.5 inch Tail pipes included for increased flow.
Please note : This system is designed to replace your factory OEM exhaust starting from the inlet of the muffler.2 and 3 piece tail pipes make for easy installation. Our Kits will convert your single exhaust system to a dual exhaust system with a Performance muffler that will give your truck the look, sound and performance you have been searching for !! Our kits are easy to install, Most jobs take 1 afternoon and basic hand tools. This kit will convert your single exhaust system to a dual exhaust system with a Performance muffler and dual tail pipes on your 2007-2013 Chevrolet Silverado / GMC Sierra 1/2 ton applications.
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