Installing new Flowmaster muffler
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Joined: Feb 2006
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Installing new Flowmaster muffler
I just picked up a flowmaster 40 series delta flow muffler from e-bay so I'm ready to install it on my 99 F-250 with a 5.4. I went and got a 6 inch extension so hopefully that will be enough as well as clamps. The muffler part number is 943041, is this correct? What are the steps as far as yanking out the old one, I took a quick look and saw what looked like large bands holding it on how do those come off? I tried a search and didn't come up with much, Anything that might be helpful would be great. Thanks!
Posting Guru
Joined: Apr 2005
Posts: 2,246
Likes: 2
From: Hawkeye Country
not sure what the newer trucks are like, but any time ive ever had to remove factory exhaust pieces they're always rusted together pretty bad. your best bet may be to get a hack saw or sawsall and cut the muffler off, have the new muffler and pipe flared at the ends so they'll slide over the factory pipe and then clamp or weld them together
Hotshot
Joined: Jun 2003
Posts: 12,353
Likes: 4,388
From: SW VA
Heh...you should have seen how the frickin muffler shop installed my Flowmaster! The stock pipe is 2.5"OD, and the Super 40 I got was a 3" OD inlet. Well...instead of putting on an adapter, he decided to "eyeball" the muffler and fill in the 1/4" gap all the way around with weld! Ohhhh that pissed me off!
But that's not the end of it...
Before, when I cut off my factory muffler, I had to add an extension to get it past the cab so it would pass inspection. Well, I used a cheezy clamp from AutoZone, and added a 2' section of pipe from a friends old exhaust. Well...the guy cut it off 2" behind the clamp and welded the muffler there.
Now I have a gimpy-a** exhaust system with 2 clamps, a flimsy adapter, and a 3" muffler welded to to a 2.5" pipe.
Oh man am I pissed.
Sorry for getting
but I just had to vent!
But that's not the end of it...
Before, when I cut off my factory muffler, I had to add an extension to get it past the cab so it would pass inspection. Well, I used a cheezy clamp from AutoZone, and added a 2' section of pipe from a friends old exhaust. Well...the guy cut it off 2" behind the clamp and welded the muffler there.
Now I have a gimpy-a** exhaust system with 2 clamps, a flimsy adapter, and a 3" muffler welded to to a 2.5" pipe.
Oh man am I pissed. Sorry for getting
but I just had to vent!
Junior User
Joined: Dec 2003
Posts: 93
Likes: 0
From: Valley Forge, PA
Exhaust info
Sorry to hear you got a 40 series flowmaster. I just took one off my son's Ranger that lasted less that 3 years. Had the same jacka** type of install with the 3" inlet filled with weld material. He had it done at Meinakey. I replaced it with a magnaflow stainless that cost about $60. The magnaflow actually had the same length as the factory muffler. Had to replace the cat to muffler piece too but required 2 adapters to make it work. Good thing too because cutting off the twin tails made them too short. The adapter made up the difference at the back. Anyway, about the time your 40 series rusts out, you'll be ready for the magnaflow. Nice deep tone without that annoying "blat" sound at WOT. Look at http://fulllineexhaust.com. You can customize your system with the parts and adapters they sell. Stainless is the way to go.
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Post Fiend
Joined: Jul 2005
Posts: 8,462
Likes: 4
From: Durant, OK (SOSU)
Stainless is also ridiculously expensive and unless you live in the north, where salted roads are common, not worth the money.
The Flowmaster 40 I previously had on my truck served me well...actually for that matter it was quite nice. I did the welding myself, took my time and used an adaptor. Don't blame the muffler company 'cause your welder did a half-assed job. If he's too lazy for not using adaptors, that's his fault for being lazy and your fault for using him, then allowing him to do it.
The Flowmaster 40's a good muffler, I ran one for a while (now I have no muffler), quite happy with it overall...expect your gas mileage to go down because of lead foot syndrom. The sound makes people happy.
And oh yeah...your Triton's about to sound like every other modified exhaust out there...
On topic: hacksaw or otherwise remove the old muffler, install the new one with adaptors, and have a shop weld it together. Not a painful job at all.
The Flowmaster 40 I previously had on my truck served me well...actually for that matter it was quite nice. I did the welding myself, took my time and used an adaptor. Don't blame the muffler company 'cause your welder did a half-assed job. If he's too lazy for not using adaptors, that's his fault for being lazy and your fault for using him, then allowing him to do it.
The Flowmaster 40's a good muffler, I ran one for a while (now I have no muffler), quite happy with it overall...expect your gas mileage to go down because of lead foot syndrom. The sound makes people happy.
And oh yeah...your Triton's about to sound like every other modified exhaust out there...
On topic: hacksaw or otherwise remove the old muffler, install the new one with adaptors, and have a shop weld it together. Not a painful job at all.
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Post Fiend
Joined: Jul 2005
Posts: 8,462
Likes: 4
From: Durant, OK (SOSU)
No hard feelings, you didn't **** me off.
I guess I'm just partial to the Flowmaster and somewhat tired of people slamming it on here, namely those who don't run it or run a competitor's muffler and have no experience with it. I did not aim that comment at you specifically, and I'm terribly sorry if you took it that way.
Do take care.
I guess I'm just partial to the Flowmaster and somewhat tired of people slamming it on here, namely those who don't run it or run a competitor's muffler and have no experience with it. I did not aim that comment at you specifically, and I'm terribly sorry if you took it that way.
Do take care.
Post Fiend
Joined: Jul 2005
Posts: 8,462
Likes: 4
From: Durant, OK (SOSU)
Yes...but there's a problem with that which may cause you to want to run a SI/DO (single in, dual out) muffler. Due to the design of the Ranger's exhaust, the exhaust manifolds combine into a Y-pipe which then goes to the cat converters, muffler, and tailpipe.
Since the cats are needed to pass inspection, you'll have to put another Y-pipe after the cats, split into two pipes, each with a seperate muffler and tailpipe.
The other option I mentioned was the SI/DO muffler, which would run the pipe from the cat into the muffler, then output two pipes to run to your choice location. It's definetly the easier of the two for the Ranger.
Since the cats are needed to pass inspection, you'll have to put another Y-pipe after the cats, split into two pipes, each with a seperate muffler and tailpipe.
The other option I mentioned was the SI/DO muffler, which would run the pipe from the cat into the muffler, then output two pipes to run to your choice location. It's definetly the easier of the two for the Ranger.
thanx
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