Wake up the 6.0L in your 2011-2019 GM 2500HD/3500HD truck with Flowmaster’s dual rear-exit FlowFX exhaust system. Manufactured with durable 409 stainless steel, this exhaust kit features 3.5-inch to dual 3.0-inch mandrel-bent tubing for excellent exhaust flow and a FlowFX "Straight Through" muffler that delivers an aggressive to moderate sound level. Dual black 4.0-inch stainless steel exhaust tips finish the custom look that your GM Truck deserves! Part Number 717987 - $915.95 Get yours here: h

2.8K views · 39 reactions | Wake up the sound of your 05-10 Mustang GT/GT500 with Flowmaster's new Flow FX Axle-back Exhaust System (Part # 717460). | Flowmaster | Facebook

Flowmaster’s new FlowFX cat-back exhaust system for 2011-2019 GM 2500HD/3500HD trucks with the 6.0L V8 features 3.5-inch mandrel-bent pipes and a FlowFX “straight-through” muffler for a moderate sound level with maximum performance. The system is built using 409 stainless steel throughout and has shown increases of up to 21 horsepower and 23 ft-lbs of torque during dyno testing. The system exits out the side, behind the rear wheel, with a 5-inch black ceramic tip for a custom look. This system u

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