Which one? whats the difference really?

 

Flowmasters are chambered. Magnaflows are straight through. Difference is sound and quality.

 

Flowmasters have the "old-fashioned" Muscle car sound . Magnaflows are are still nice and deep, but are a little snarlier with some backpressure "pops" when you get off the gas. Flowmasters (as with any chambered muffler) develop a drone at about 2000rpm that can be annoying to some people. I don't mind it in my car, but some people do. Most of the time Magnaflows are a little more expensive.
Personally I like the sound of my Fowmasters, but it's all personal choice.
Try going to www.mustangexhaust.com, if you "register" on the site you can listen to recordings of various exhaust setups.

 

as a fellow flowmaster customer, the done doesnt bother me at all

its hardly noticable......i do have the stock midpipe tho

 

I have Magnaflows so of course I like the sounds of them, but I also like the sound of Flowmasters. If I had to choose though I would say Magnaflows. -Jay

 

SLP!!!

 

+1

 

I have the magnaflow high flow X and cat backs and like them alot. They soung good when you get on them but don't deffen you when you are driving in traffic.

 

I just installed Flowmaster Super 40s on my 99 Cobra and I love them.. I just about get a woodie when I hear that low drone @ 2000k RPM..

Something about sitting in 4th gear and hoovering at about 40 MPH and just listening to the car purrrrr like a kitten.. I love it.. Best thing is it sounds tough and your don't have to be getting on the gas.. Just going slow makes the car sound bad *** if you ask me..

Flowmaster FTW!

 

^^^ exactly