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'05 Silverado 2500HD Super 44 Flowmasters 1 Give this video a trophy

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Here it is after 1,000 miles. Much better toned idle, and much louder when past 3000rpms. And the engine was fully warmed up.

stock manifolds
Magnaflow Hi-Flow cats
3" duals H piped
Flowmaster Super 44 mufflers
4"x12" Magnaflow SS tips.

mufflers part #943046, tips part #35116

Added by DarrenWS6

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