A friend had a eco boost truck and he got an MBRP system put on, he said it feels more powerful now and he gets 2 litres per 100 better than he did before!
I did the quick math and would save the money for the new system (I will guess cat back) in about 1 year approximately with the gas savings.
Of course I just read that Ford doesn't suggest changing to a free flow to avoid spooling??
Comments?