Janissa Andre

I have a 2016 c250, thinking about straight piping with the magna flow x-pipe. Any tips?

The Machinist

Seeing as the C250 has a turbocharged 4 cylinder, you’ll have no need for an X-pipe.

I honestly can’t recommend going with a straight exhaust on any 4 cylinder. They all sound like Honda civics to my ear, not to mention that the drone is dreadful.


Any exhaust modifications which will alter emissions equipment will require appropriate software modifications through a reputable tuner to prevent a CEL.

Janissa Andre

So as far as an exhaust, which would you recommend? For the turbo, I was also thinking of adding a blow off valve for the high pitch noise.

The Machinist

Whatever you end up going with, make sure it is a quality component from a reputable supplier. Avoid Chinese ****.

Make sure whatever you get has a resonator that’s is matched to the muffler. That will take out the raspy Honda noise and also reduce the drone.

For a BOV you will need to have the computer tuned, as they come with a recirc valve from the factory.

If you dump boost charge to atmosphere when the throttle closes it will throw a CEL for Mass air sensor problems without the tune.