Mercedes S211 E320 CDI OM648 DPF Delete and Economy Remap: What You Need to Know
Planning a DPF delete and remap on an OM648-powered S211 E320 CDI? Here’s why the remap brief matters more than the physical work, and how to actually gain economy.
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Why L5P Duramax Tuning Won’t Save Fuel Like Your Old 7.3 PSD Did
Modern diesels like the L5P Duramax start from a much tighter factory calibration than older trucks like the 7.3 PSD — here’s why that closes the door on easy fuel economy gains.
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L5P Duramax Tuning: Why the Factory Left Nothing on the Table for Fuel Economy
Why the L5P Duramax gains almost no MPG from a tune while older diesels like the 7.3 Power Stroke did, and what you can realistically expect from the Derringer and full ECM tuning.