Flowmaster muffler specifically develped for Ecoboost
#11
Junior Member
Join Date: Dec 2011
Location: louisiana
Posts: 23
Likes: 0
Received 0 Likes
on
0 Posts
Joewee I haven't had it on long enough for the computer to really reset maybe 300 miles on the kit. So by the time that i post a video of the sound hopefully the computer will have did a somewhat self tune to the mods. Don't think it will come close to the hearthrob gains in horsepower; if i had to guess 15-20 horsepower gain maximum. Unless you go with the Hushpower Pro Series mufflers which are similiar design to the hearthrob muffler because my force II muffler looks identical to my chambered muffler that a had on my 08 5.4 3v which i traded in for my ecoboost. Don't know why that is guess that to keep it a quiet and less aggressive for those who don't like the louder mufflers, personal opinion.
#13
So it's a chambered muffler? Sounds more restrictive than stock. I hope you're right about picking up hp. I didn't know the comp had to take some mileage to learn the mod. I put my muffler on when I received delivery of my truck haha.
#15
Senior Member
#17
#19
Senior Member