FeaturedHow to choose the right RaceME tuner for your Cummins
Model year, ECM strategy, and transmission decide the part number long before power goals do. Here is the order we work through it.
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No filler articles. Every piece here comes from a truck that was actually on the lift — what failed, what we tested, and what we would put on our own rig.
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One or two emails a month. Diagnostic notes, new parts, and the occasional strong opinion about filtration.
FeaturedModel year, ECM strategy, and transmission decide the part number long before power goals do. Here is the order we work through it.
DiagnosticsRough idle, white haze, and long cranking get blamed on injectors constantly. Here is how we confirm it before spending your money.
ReliabilityBefore the tuner, before the intake, before the exhaust — protect the parts you cannot afford to replace.
DiagnosticsFour numbers tell you almost everything about how hard a turbo diesel is working. Here is what normal looks like and what should worry you.
TransmissionFour upgrades, in order, that decide whether a tuned 68RFE lasts 400,000 miles or 40,000.
TowingNinety-five degrees, eighty percent humidity, and a loaded trailer. Where the heat actually comes from and how to get rid of it.
ReliabilityManufacturer intervals assume ideal fuel. Florida fuel systems see more water than the schedule accounts for.
BuyingThe honest trade-offs between the last common-rail 5.9L and the generations of 6.7L that followed it.
Call the shop or send the details. We answer technical questions for customers and non-customers alike — it is how we end up writing half of these articles.