Posted 2013-03-20 12:19 AM (#5477) Subject: Strait Pipe??
I have a 98 Cummins Turbo Diesel. Empty it get about 26-28 mpg, towing about 20-22. My friend wants to put a Strait Pipe on it..says it will get even better mileage. Is this true? And what are some good/bad things about strait pipes?