Quote:
Originally Posted by TorqueDog
I had my E550c (M278 engine) tuned to 550HP/705FT-LBS (Stage 2, stage 1 was ~503HP) and it was glorious. Reliability was unchanged, which is to say it was trouble-free; I did the regular maintenance and it was just fine.
If you're gonna do a tune on the E400, do a Stage 2 and try to get downpipes done at the same time. It'll dramatically improve the responsiveness and the end result.
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Yeah, sold now, but my CLS550 had this tune as well and was a rocket and totally reliable for a decade.
I actually tuned my F-150 3.5 Ecoboost last week. The tune just came out for the 2024s through Ford Performance (I've been checking weekly for this tune for over a year). It's not as aggressive as a non-Ford tune, but it maintains my factory warranty. Adds about 115 ft-lbs of torque and 55 horsepower or something. $1300 all in and installed at the dealership. Again, not the greatest deal and these motors can make way more power, but I want my warranty.
Results are great. I have 33" tires so it'll never be a sports car, but I've gotta be in the low 5 seconds for a 0-60 and it is fast and monstrously torquey. It's faster than most sports cars from the 90s and it's a big truck. I think I'm over 600 ft-lbs now.