Derringer is the BEST Ford 6.7L inline tuner. Here's why.
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How to Build a Better Inline Diesel Tuner
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Watch Derringer DESTROY all other Ford 6.7L Tuners 🏁
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Adding 120 HP to a 20 year-old Diesel
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More POWER With A DPF Fitted? | Gale Banks On Emissions [TECH TALK]
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Busting RAM Bro Science | Banks Fact Check
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Ford F-350 6.7L PowerStroke | 5 Reason Why New Diesel Engine SUCK *Diesel Mechanic Explains*
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TUNED POWERSTROKE 0-60 & MPG BANKS DERRINGER & DATA MONSTER
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