Flowmaster
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Junior User
Joined: Nov 2010
Posts: 95
Likes: 0
Was your truck pretty much stock, like single exaust and cats. I am keeping the single exaust and cats. Also my truck has headers so hopefully it sounds throaty.
Hotshot
Joined: Jun 2007
Posts: 10,008
Likes: 7
From: Austin, TX
IF your stuck on Flowmaster, I would get the 44, but it's up to you. The 44 will be louder than the 40... IMO though, I would run something else. Magnaflow, Borla, etc. A "straight thru" style muffler will flow much better than a chambered Flowmaster. Think about how many times the air has to change directions inside a Flowmaster muffler...
EDIT: My buddy has a Flowmaster Super 44 on his 4.6L F-150 with all 4 stock cats. It's extremely quiet thanks to the cats, but has an OK sound.
EDIT: My buddy has a Flowmaster Super 44 on his 4.6L F-150 with all 4 stock cats. It's extremely quiet thanks to the cats, but has an OK sound.
Logistics Pro
Joined: Mar 2011
Posts: 4,197
Likes: 558
From: Central Wisconsin
Ill give you an opinion for a guy that actually enjoys flowmaster. if you keep the cats on, id go with the 40. the headers are going to make it a lot more throaty, and the 44 is going to be obnoxiously loud. The 40 will only be loud when you put it to the floor though so nobody will bother you about it while cruising around. I have a flowmaster 50 series on my truck (351w, no cats, single 3 inch right now) and it sounds like a straight piped 302 when you can on it, and it just has a nice rumble when youre nice to it.
Cargo Master
Joined: Jan 2011
Posts: 2,791
Likes: 8
From: Edmonton AB, Canada
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Lead Driver
Joined: May 2009
Posts: 6,807
Likes: 704
From: Tobyhanma, PA
I Have a Super 44 and I love it. I had a delta 40 and it was too mellow for my tastes, but I like to be noticed.
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FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
+1. If the stock cats are staying you're completely wasting your time and money here, it'll still be whisper quiet at anything above idle. Now if you get rid of the cats there are lots of options but DroneMasters don't make it on my list anymore.. had the Super 44 and 50 and hated them.. too much freakin noise, but then my truck has a big cam in it so it's gonna be a bit more obnoxious than a stock motor.
Elder User
Joined: Nov 2009
Posts: 890
Likes: 1
I have an SLP Loudmouth 1 resonator on mine that used to be on my mustang. It is about as loud as you can get, louder than straight pipe. Flowmasters have a drone to them at cruising speed that drives me crazy, also they are not stainless so they rust out, I have seen them lose all their baffles. Go with the magnaflow in my opinion.
Fleet Mechanic
Joined: Jul 2006
Posts: 1,346
Likes: 4
From: Rapid City, SoDak
It had shorty headers, a single hi flow cat and single 3" exhaust. It had a glasspack on it before I did the flowmaster. The glasspack was ok but it wasn't throaty like the flowmaster. I didn't have any drone issues, surprised to hear people with a cat have drone..
