2016 Mercedes E400 3.5L V6 Turbo or supercharger upgrades?
The M276 isn't often tuned. There is a C-Class owner who recently posted who used an AMR tune and broke a piston ring(s) and is walking away from the car. I think one or two other tunes are available, but caveat emptor, there doesn't seem be a large dataset to assess reliability of a tuned M276 engine. It's a higher than average risk endeavor in my view.
A friend of mine here in Florida has a CLS400 (same engine as the E400) with all the goodies possible and it won’t make that much torque. I am kind of confused by the OP post. From what I can see you don’t get that power from just tunes. You have to upgrade the turbos.
Last edited by C280 Sport; Dec 29, 2020 at 09:49 PM.









