Flowmaster muffler VS. Dynomax
Thread Starter
|
New User
Joined: May 2014
Posts: 24
Likes: 0
Flowmaster muffler VS. Dynomax
Bought the Flowmaster catback system 6 months ago...... nice tubing, fit together well, DRONES ALL THE TIME between 1400-2000 RPM, even when barely on the throttle, so much so that it gave my wife headaches. Amazing how good it sounded ABOVE 2000 RPM, and relatively quiet, even when mashing it to the floor. But the massive DRONE was not tolerable. Sounded like I had a 55 gallon drum for an exhaust tip, especially when pulling thru highway underpasses.
Swapped out the muffler for a DynoMax Ultra Flow, the next to largest one they make, and it is quite a difference. I wasn't expecting alot from the Ultra Flow because it is a straight thru design, but I figured anything had to be better than the DroneMaster. It is. About 30% less drone volume in the 1400-2000 rpm range, and moderately quiet at full throttle (in the cab at least). I can live with it, and more importantly, so can the wife.
I know that the FlowMaster in the kit was a 50 series, and they do make a 3 chamber 70 series that is allegedly good for RVs, but I could not find any opinions on it.
FWIW, the FlowMaster axleback kit we had on the '05 V6 Mustang worked pretty good, sounded great inside the car.
Swapped out the muffler for a DynoMax Ultra Flow, the next to largest one they make, and it is quite a difference. I wasn't expecting alot from the Ultra Flow because it is a straight thru design, but I figured anything had to be better than the DroneMaster. It is. About 30% less drone volume in the 1400-2000 rpm range, and moderately quiet at full throttle (in the cab at least). I can live with it, and more importantly, so can the wife.
I know that the FlowMaster in the kit was a 50 series, and they do make a 3 chamber 70 series that is allegedly good for RVs, but I could not find any opinions on it.
FWIW, the FlowMaster axleback kit we had on the '05 V6 Mustang worked pretty good, sounded great inside the car.
PREMIUM SPONSOR
Joined: Jan 2011
Posts: 164
Likes: 2
What's the old saying, "Happy wife, happy life?"
__________________
Follow us on Facebook!
https://www.facebook.com/dynomaxexhaust
http://www.dynomax.com
Follow us on Facebook!
https://www.facebook.com/dynomaxexhaust
http://www.dynomax.com
Fleet Mechanic
Joined: Aug 2006
Posts: 1,684
Likes: 0
From: Phoenix, AZ
I heard a flowmaster 70 big block muffler on a Titan, and to this day that was the best sounding truck ever. Those 5.6s sound really damn good. Too bad about the dana 35 rear axle.
I heard a magnaflow on a V10 once and sounded pretty good. From how short it was, I imagine it probably weighed about 50 lbs less than the stock muffler too...
I heard a magnaflow on a V10 once and sounded pretty good. From how short it was, I imagine it probably weighed about 50 lbs less than the stock muffler too...
Hotshot
Joined: Mar 2007
Posts: 10,101
Likes: 40
From: Pa
I had an Ultra Flo on V10 gone now, dad had a Magnaflow. I have put on and run enough mufflers on V10s and packed mufflers are not where it is at. Have had nothing but Flowmaster 70 series mufflers since.(glad they have a stainless now) Buy a small capacity muffler and you usually end up with drone. FYI packed mufflers change tone and often times drone more as they age.
Thread
Thread Starter
Forum
Replies
Last Post
craneop
Modular V10 (6.8l)
10
Mar 20, 2007 07:36 AM
snoVVman
1997 - 2006 Expedition & Navigator
2
Nov 8, 2004 05:32 PM
