PSA: I finally gave in and got a custom tune for my 3.5L EcoBoost

Angela Ross · 2026-03-14T22:05:06.725406+00:00

I always thought canned tunes were fine, but a shop in Phoenix convinced me to try a dyno session. The difference in throttle response and mid-range torque is huge, especially when towing my trailer. Anyone else have a good tuner recommendation for the 10-speed transmission?

robin_roberts847mo ago

A good tuner should also check your fuel trims and knock sensors. Mine ran cleaner after the tune because they fixed some factory lean spots.

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paul_patel407mo ago

My old F-150 gained 40 hp from a dyno tune in Tucson, totally changed the truck.

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caleb2627mo ago

Totally changed the truck" is a big claim. I get that a dyno tune feels faster, but is it really that serious for daily driving? My neighbor did one and his check engine light came on a month later. Even @paul_patel40's 40 hp gain sounds nice, but that's just a number on paper. Most people don't need that extra stress on their engine just to merge onto the highway a tiny bit quicker.

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