Thinking about having a resonator (Magnaflow p/n 12774?) installed. Any noticeable horsepower gain is reason enough but I'm curious about improvement in fuel consumption. So for those of you who have made the change and keep track of your fuel consumption, would you mind sharing your results? I am also open to opinions and advice. Thanks!
Bill
I do the same trip year after year. I drive from VA to Spokane Washington in the spring or the summer every year. I have three years of data before and 6 after the resonator. I also have it in my old coach as well. I got about .7 mpg better mileage. I get better boost too and I raised my overall milage b y the silverleaf from 6.8 to 7.5 since new.
Some of that could be breaking in but I put the resonator on 60K miles ago and love it.
Also try searching the forum - I put in resonator mpg and came up with 20+ topic results.
Do not keep fuel use records as not interested but would do this changeover again in a heart beat. Love the extra boost although I again have a Banks on mine and that alone makes a massive difference. Some have said the Banks will trash your engine but mine has been on now for 7 yrs and the engine just purrs along. I get up to 34lbs max boost on a big push but do have to be carefull about temps.
Do it you will love the difference and it only costs a couple of dollars to do it compared to all other improvements you do.
JohnH
Howdy Bill, Here's a link to my experience: Resonator Installation (http://www.foreforums.com/index.php?topic=23658.msg184489#msg184489)
Good Luck, Dave A