Muffler Questions
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Junior User
Joined: Dec 2008
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Muffler Questions
2000 e150, 4.2 engine.
I think it's time for a new muffler. Thinking about going aftermarket. Any suggestions for something that might increase the power over the factory muffler but Not be too loud?
Thanks.
I think it's time for a new muffler. Thinking about going aftermarket. Any suggestions for something that might increase the power over the factory muffler but Not be too loud?
Thanks.
Freshman User
Joined: Jun 2009
Posts: 46
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I have a 4.9 had 2 Magnaflows and didn't like either, too quiet. I went with a cheap Thrush muffler from Advance cost me like $40 now it sound a little more like a truck but not loud at all at least not on my 4.9.
Magnaflow gave me my money back on the first muffler after I installed it and didn't like the sound. Sent me check with no questions asked. Tried another Magnaflow but still didn't like it. Replaced it with the Thrush when my tailpipe rusted out.
Magnaflow gave me my money back on the first muffler after I installed it and didn't like the sound. Sent me check with no questions asked. Tried another Magnaflow but still didn't like it. Replaced it with the Thrush when my tailpipe rusted out.
Tuned
Joined: Jul 2003
Posts: 455
Likes: 3
From: Berkeley
I had a big magnaflow on my '82 E350 w/400 & headers. While not as loud as previous FlowMaster 50 series, it was still too loud for my tastes (prolly due to my headers and total lack of soundproofing in the cargo van). Anyways, i still have it in case anyone's interested (PM me) . It's their big 3" in/out unit with center in/offset out (can be reversed). magnaflow part # 12589 (http://www.magnaflow.com/02product/s...e=main&id=8041)
Logistics Pro
Joined: Jul 2006
Posts: 4,512
Likes: 18
From: Detroit
Of course, we're not really talking about a lot of power gain or loss, so it's not a super big deal. I've had numerous 6-cylinder vehicles with various exhausts (including a short Hush Thrush muffler and a dump pipe on two of them) and they usually sound less than really cool when they're running. This was in the old days when I was into cheap above all.
I think the 4.2 has the same exhaust system and muffler as the 4.6 and maybe even the 5.4 engine, so if that's the case, the stock system probably has plenty of flow. But if you want a bit more sound, there is a Walker SoundFX muffler, I think it's called, that Rock Auto lists. It's pretty cheap--about $45 or so from what I recall....but it's not stainless like the original muffler, so it's only going to last 2-5 years depending on where you live. Or you could just find a universal glasspack and put that on. Again, the six ain't gonna sound that good.
Take care,
George
Freshman User
Joined: Jun 2009
Posts: 46
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Less backpresure will increase power, but only in the high rpm ranges. And less backpressure may actually reduce torque at lower rpm's...seems like with the 4.2 you want all the low end grunt you can get. (Even my E150, with 4.6, could use more low end grunt.)
Of course, we're not really talking about a lot of power gain or loss, so it's not a super big deal. I've had numerous 6-cylinder vehicles with various exhausts (including a short Hush Thrush muffler and a dump pipe on two of them) and they usually sound less than really cool when they're running. This was in the old days when I was into cheap above all.
I think the 4.2 has the same exhaust system and muffler as the 4.6 and maybe even the 5.4 engine, so if that's the case, the stock system probably has plenty of flow. But if you want a bit more sound, there is a Walker SoundFX muffler, I think it's called, that Rock Auto lists. It's pretty cheap--about $45 or so from what I recall....but it's not stainless like the original muffler, so it's only going to last 2-5 years depending on where you live. Or you could just find a universal glasspack and put that on. Again, the six ain't gonna sound that good.
Take care,
George
Of course, we're not really talking about a lot of power gain or loss, so it's not a super big deal. I've had numerous 6-cylinder vehicles with various exhausts (including a short Hush Thrush muffler and a dump pipe on two of them) and they usually sound less than really cool when they're running. This was in the old days when I was into cheap above all.
I think the 4.2 has the same exhaust system and muffler as the 4.6 and maybe even the 5.4 engine, so if that's the case, the stock system probably has plenty of flow. But if you want a bit more sound, there is a Walker SoundFX muffler, I think it's called, that Rock Auto lists. It's pretty cheap--about $45 or so from what I recall....but it's not stainless like the original muffler, so it's only going to last 2-5 years depending on where you live. Or you could just find a universal glasspack and put that on. Again, the six ain't gonna sound that good.
Take care,
George
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Cargo Master
Joined: Dec 2003
Posts: 2,182
Likes: 7
From: Saint Augustine, FL
I use a DynoMax UltraFlow and have used them on several vehicles. If you look at the dyno numbers from most of the comparisons, the UltraFlo is right at the top of the torque numbers and only a few from the top of the HP numbers. Its an excellent unit.
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Freshman User
Joined: Jun 2009
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Let me correct my post it wasn't Magnaflow but Dynomax that I tried and didn't like, both the Super Turbo and Ultraflo lines, too quiet for my taste and not enough backpressure. I still like my Thrush better although not as well made it sounds better and I don't lose backpressure. My Thrush is a much shorter muffler than stock it's not a stock replacement.
Freshman User
Joined: Jun 2009
Posts: 46
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Probably sounds more like a truck, which is what I was trying to go for. Of course with an inline six it's impossible, open exhaust no muffler it sounds like an old tractor. At least I can hear mine now with the Thrush.
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