This doesnt have to do with mustang's but my friend claims that his dad got some exhaust (not duel) for his f-350 diesel 2003 or something. But anyway he say's it added 60 hp. This makes me uneasy b.c i really dont believe him. Any information would be awsome. Thank you
Diesels always have plenty of air being pumped through, their biggest gains are based through both the addition of fuel and higher boost pushed by the turbo... 60 hp thru an exhaust, no way.
A tune on a diesel will eliminate smog control devices while upping the fuel delivery. Combined with a better air box they put out an additional 100-150 hp easily.