So I'm considering either the catalytic delete pipe or the stock muffler delete pipe from Pure Diesel Power for my excursion. Looking for a little extra noise, but nothing deafening. Not as interested in HP (no studs yet) but mainly mileage gains. I figure I'd go 4" stainless if it weren't for the extra price that I could be spending on gauges, maintenance items, or parts for my other cars.
Which one of these pipes will give me the best increase in mpg?
Is a no muffler/no cat straight piped diesel too loud for daily driving given the giant cabin of the Excursion?
Which one of these pipes will give me the best increase in mpg?
Is a no muffler/no cat straight piped diesel too loud for daily driving given the giant cabin of the Excursion?