flowmaster 10 series
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Tuned
Joined: Oct 2013
Posts: 348
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From: British colombia
flowmaster 10 series
hey all, a couple of months ago I installed a flowmaster 10 series on my 1990 f250 with the 460. Its got a stock cat into 3in piping into the muffler then dual 2.5in the dump out before my rear tire on the passengers side. Within the next week or two, I plan on taking out my cat and replacing it with 3in piping and also installing a Y pipe. What should I expect as a change in performance and sound? I know it's going to be louder, but what about the tone? will the Y pipe make a difference in sound/tone?
jared
jared
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Joined: Mar 2011
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From: Central Wisconsin
You're going to be a cop magnet with a truck that loud. Save yourself the trouble of getting a ticket for the excessive noise, and removal of emissions equipment, and leave the catalytic converter alone.
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Tuned
Joined: Oct 2013
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From: British colombia
As of right now it's pretty quiet considering it's supposed to be their loudest muffler. I live in BC and don't need airfare because my gvw is 5300 kg. also will it have a loud hollow rumble or are we talking like crackly popping straight pipe sounding.
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Tuned
Joined: Oct 2013
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From: British colombia
Ok, thanks for the input guys. Would the only way to make it quieter be get a different muffler, 40 series perhaps? Or is their anyway to keep the same muffle and meet somewhere in the middle with buying a high flow cat
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Tuned
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From: British colombia
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Joe Kucinski
Fleet Owner
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From: Gilbert, PA
I have the old 20 series(now called 10 series) w a high flow cat. It can set off car alarms from 25' away. That is how loud is it.
Running NO cat will make it that much MORE loud.
I am looking at putting a 40 series on to quite mine down a touch and get rid of the pops and back fire when down shifting
Running NO cat will make it that much MORE loud.
I am looking at putting a 40 series on to quite mine down a touch and get rid of the pops and back fire when down shifting
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Tuned
Joined: Oct 2013
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From: British colombia
So many people just run straight pipes and I was under the impression that they didn't set of car alarms ahha. (Because lots of people do it) would it be louder than just plain straight pipes? I just though that it would be essentially straight pipes but with a bit of flowmaster tone to it and having thicker diameter pipes would make it deeper sounding. You guys are making me second guess all this. I am wanting my truck to be quite a bit louder.
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Joined: Apr 2011
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From: Hartland, WI
I'm one of those people who find excessively loud cars/trucks/bikes offensive. Yes, I have race pipes (not drag pipes) on my Harley, but I wouldn't consider it excessive.
Straight pipes with no cats and no mufflers will be the loudest, short of open manifolds. You will have zero back pressure, the resonance inside the cab will make your eyeballs hurt, you won't be able to hear the radio, and you'll get pulled over. IMO exhaust sound should be quality over quantity. Anyone can make a low compression emissions engine loud.
Straight pipes with no cats and no mufflers will be the loudest, short of open manifolds. You will have zero back pressure, the resonance inside the cab will make your eyeballs hurt, you won't be able to hear the radio, and you'll get pulled over. IMO exhaust sound should be quality over quantity. Anyone can make a low compression emissions engine loud.
Lead Driver
Joined: Jul 2007
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From: Rhode Island
So many people just run straight pipes and I was under the impression that they didn't set of car alarms ahha. (Because lots of people do it) would it be louder than just plain straight pipes? I just though that it would be essentially straight pipes but with a bit of flowmaster tone to it and having thicker diameter pipes would make it deeper sounding. You guys are making me second guess all this. I am wanting my truck to be quite a bit louder.
No cat is just too loud on a 460.
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Joined: Dec 2013
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From: Occidental, CA
I have a flowmaster 40 on my 1990 460 truck and it is LOUD. There is no cat on my truck. I have 2" muffler pipe in and out. My truck sounds good at idle, but when you get it up to 3,500-4,000 rpm and have both windows open you might not be able to hear you buddy siting next to you.
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Joined: Apr 2005
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From: Hawkeye Country
Everyones definition of "loud" is different... Ive got headers and glasspacks with no cats on 2 of my trucks and I dont mind it. Extremely burley rumble at idle and low speeds and sounds like the god of thunder is unleashing his fury from 5 miles away when you floor it.
That being said your 10 series flowmaster is basically just a hollow can with a single baffle in it, might as well just straight piped it snd saved the 80 bucks. Its gonna drone like crazy and have the echoy poppy garbage disposer flowmaster sound. But hey it'll be louder then absolute hell if that's what you're after.
That being said your 10 series flowmaster is basically just a hollow can with a single baffle in it, might as well just straight piped it snd saved the 80 bucks. Its gonna drone like crazy and have the echoy poppy garbage disposer flowmaster sound. But hey it'll be louder then absolute hell if that's what you're after.