Muffler change... backpressure needed?
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Senior User
Joined: May 2010
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Muffler change... backpressure needed?
Currently have a V10 with no cat and a Flowmaster 44. Flowmaster has rusted out around the outlet tube and needs replaced. Don't like the sound of it on the V10 anyways....
Wanting to do a glasspack but I am worried it wont have enough back pressure. Ive heard the V10 straight piped and it just didnt sound quite right (could be 10 cylinders open just sounding different to me) but anyways will a glasspack let the engine function normally on a 2000 V10?
If not I will just end up getting the Flowmaster 50 HD
Wanting to do a glasspack but I am worried it wont have enough back pressure. Ive heard the V10 straight piped and it just didnt sound quite right (could be 10 cylinders open just sounding different to me) but anyways will a glasspack let the engine function normally on a 2000 V10?
If not I will just end up getting the Flowmaster 50 HD
Junior User
Joined: Nov 2011
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The v10 needs more back pressure than just a glasspack with no cats can supply... it will run it will just loose performance.. i have a set of magnaflow highflow cats.. $100 for both from summit. And a SLP loudmouth resonator. $77. Love the sound of mine and awesome performance
Hotshot
Joined: Mar 2007
Posts: 10,101
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From: Pa
Not the backpressure myth again. You changed the exhaust velocity by ditching the cat, same with going to the undersized FM44.(Probably have that crappy collapsed exhaust shop bends too) I'd put a Flowmaster 70 BB2 or a FM50 SUV muffler on it and call it good. Just get a muffler with a decent amount of capacity to it. Loud and annoying exhausts don't always equate to more power, it is often times the opposite.
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Senior User
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Not the backpressure myth again. You changed the exhaust velocity by ditching the cat, same with going to the undersized FM44.(Probably have that crappy collapsed exhaust shop bends too) I'd put a Flowmaster 70 BB2 or a FM50 SUV muffler on it and call it good. Just get a muffler with a decent amount of capacity to it. Loud and annoying exhausts don't always equate to more power, it is often times the opposite.
I just run glasspacks on all the V8s ive ever owned (whats wrong with me??!!) but it just didnt seem right on the V10.
Looking at 50 series but what do you guys think about the Flowmaster Pro Series (aka Hushpower pro?)
Senior User
Joined: Jun 2006
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On my 2006 F250 I ran straight pipes with no cat or muffler for 3 yrs with no problems, no noticeable loss (or gain) in power from it either. Sure it may have had one, but it certainly was not dramatic enough for me to notice.
I hear all these backpressure stories all the time, usually just ignore them.
I hear all these backpressure stories all the time, usually just ignore them.
New User
Joined: Aug 2011
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I have previously run a Flowmaster super 44. After it recently rotted off, I replaced it with a MBRP full 5 inch, with duals (5 inch) specifically made for the v10. Anybody who tries to tell ya back pressure this, and back pressure that, ignore it. My throttle response is better. My towing power is better. And so is my mileage. No, I don't have a dyno sheet. Don't need one. Oh yea, the v10 sounds great with duals, the bigger the better. No it's not loud, in my opinion.
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Joined: Jun 2011
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From: Los Angeles
I have previously run a Flowmaster super 44. After it recently rotted off, I replaced it with a MBRP full 5 inch, with duals (5 inch) specifically made for the v10. Anybody who tries to tell ya back pressure this, and back pressure that, ignore it. My throttle response is better. My towing power is better. And so is my mileage. No, I don't have a dyno sheet. Don't need one. Oh yea, the v10 sounds great with duals, the bigger the better. No it's not loud, in my opinion.
Vidoe and pics!!!!!
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Hotshot
Joined: Mar 2007
Posts: 10,101
Likes: 40
From: Pa
I have previously run a Flowmaster super 44. After it recently rotted off, I replaced it with a MBRP full 5 inch, with duals (5 inch) specifically made for the v10. Anybody who tries to tell ya back pressure this, and back pressure that, ignore it. My throttle response is better. My towing power is better. And so is my mileage. No, I don't have a dyno sheet. Don't need one. Oh yea, the v10 sounds great with duals, the bigger the better. No it's not loud, in my opinion.
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