Full VGT Delete X15 Cummins With 8 Inch Straight Pipes / Lots Of Engine Brake
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21:24
Straight Piped Pete with a Cummins ISX CM871
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7:05
Kenworth mx13 Dual Straight Pipes 13 speed Floating the gears.
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26:52
Insane Jake brake compilation!
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8:18
Cummins ISX CM2350 Full Tilt Manifold with Bully Dog Turbo Install | Peterbilt 389
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14:16
Kw 60 series Detroit with “LOUD” straight pipes and JAKE BRAKE
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50:06
Just Driving. No Music, Just The Straight Pipes Singing
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23:30
How to UP your Big Rig Fuel Economy in less than 2 Hours! X15 Cummins Performance!
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10:24