Originally Posted by laidback
I knocked out my Cat on my 2005 F250 diesel and MPG dropped. Putting on Pacesetter LT here soon and trying to find out if I need to order new cats (not gonna use the old ones) or just not use any. Redoing everything and just trying to get it put together before I order.
Diesel exhaust is totally diff. Those engines run better with ditch culverts strapped to the turbo. The only issue is dealing with the enormous sound