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  #16  
Old 03-29-2011, 08:07 PM
jaw42885 jaw42885 is offline
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Default Re: Flowmaster 40 not loud enough...

Quote:
Originally Posted by AlxGry View Post
i havent noticed any loss. Gas mileage is about the same too. Maybe thers a little less get up and go but my truck will still get outta there when it needs too.
Quote:
Originally Posted by matt224 View Post
There shouldn't be any hp loss from removing a muffler. If you are talking about "backpressure" being needed for the engine, then i must inform you that it is a myth and untrue for a NA engine
well this is good to know... maybe ill go the no muffler route. or glasspack?
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  #17  
Old 03-29-2011, 08:12 PM
matt224 matt224 is offline
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Default Re: Flowmaster 40 not loud enough...

You just need to get a muffler with a straight through design. I'd recommend against straightpiping it or using a small bullet resonator simply because it is a 3.0 v6 and, will unfortunately sound more like a rice mobile than a truck. Even the 4.0 gets raspy and high pitched quick. I'm not all that familiar witht he mufflers available for the 3.0 that will fit, but I do know brands like Borla, Magnaflow, SLP, Corsa all make traditional style mufflers with a straight through design.
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  #18  
Old 03-29-2011, 09:19 PM
pooleo pooleo is offline
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Default Re: Flowmaster 40 not loud enough...

remove cats. look up my ranger on the exhaust thread, they can be loud and sound good.
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  #19  
Old 03-29-2011, 10:17 PM
Gumcrew2 Gumcrew2 is offline
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Default Re: Flowmaster 40 not loud enough...

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Originally Posted by matt224 View Post
There shouldn't be any hp loss from removing a muffler. If you are talking about "backpressure" being needed for the engine, then i must inform you that it is a myth and untrue for a NA engine
UHHHH say WHAT?!?!?!?

I agree that removing a muffler wont net any HP loss ( a very small gain if it was restrictive)
BUT


Having driven my 4.0L Jeep (I6), with NO exhaust (just a block), just headers, headers and a cat, headers and a muffler, and headers with both a cat anf muffler that back pressure made a pretty significant difference in 1500-2000rpm torque, at a sacrafice of a tiiiiny bit at the very top end (4500rpm). The best performance was with headers and a muffler, even open headers left it coughing at some RPMS.
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  #20  
Old 03-30-2011, 05:02 AM
matt224 matt224 is offline
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Default Re: Flowmaster 40 not loud enough...

open headers is not the best way to run an exhaust. There is no such thing as back pressure; what you experienced was the cooling of the exhaust through the rest of the piping and muffler, which will help extract exhaust from the ports and primaries; this is not back pressure.
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Last edited by matt224; 03-30-2011 at 10:06 AM.
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  #21  
Old 03-30-2011, 06:38 AM
everclear000 everclear000 is offline
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Default Re: Flowmaster 40 not loud enough...

take the cat off
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  #22  
Old 03-30-2011, 10:30 AM
Gunner Gunner is offline
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Default Re: Flowmaster 40 not loud enough...

To get a louder sound, you may want to consider a side exit exhaust in front of the rear axle. Generally speaking, the shorter an exhaust system is, the louder it will be. I have the lightning style setup on my 2011 using a 40 series delta flow with dual outs. Its noticeably louder than stock and at cold idle. Warm idle is pretty well silent.
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Last edited by Gunner; 03-30-2011 at 11:41 AM.
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  #23  
Old 03-30-2011, 10:35 AM
Dcrymes99ranger Dcrymes99ranger is offline
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Default Re: Flowmaster 40 not loud enough...

1 word.... MAGNAFLOW
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  #24  
Old 03-30-2011, 10:40 AM
Dabiscuit Dabiscuit is offline
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Default Re: Flowmaster 40 not loud enough...

Having 4 cats doesn't help with sound. You can remove 1 without throwing any codes. Would make it louder but is illegal in some states.
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  #25  
Old 03-30-2011, 10:43 AM
matt224 matt224 is offline
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Default Re: Flowmaster 40 not loud enough...

^he's in California I think, so he's pretty screwed with the emission crap I think lol
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  #26  
Old 03-30-2011, 12:54 PM
jaw42885 jaw42885 is offline
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Default Re: Flowmaster 40 not loud enough...

yup id be screwed with emissions... stupid ca
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  #27  
Old 03-31-2011, 08:44 AM
Goosed76 Goosed76 is offline
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Default Re: Flowmaster 40 not loud enough...

Had a 40 series Flowmaster on my Jeep ZJ Grand Cherokee- liked the sound with the straight 6, not sure that I like the sound with a v6- Anyone running the MBRP cat back kit? I want a noticeable sound increase, not super loud, but a throaty tone that doesn't drone in the cab....
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  #28  
Old 04-04-2011, 03:41 PM
Pickupman04 Pickupman04 is offline
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Default Re: Flowmaster 40 not loud enough...

Quote:
Originally Posted by Goosed76 View Post
Had a 40 series Flowmaster on my Jeep ZJ Grand Cherokee- liked the sound with the straight 6, not sure that I like the sound with a v6- Anyone running the MBRP cat back kit? I want a noticeable sound increase, not super loud, but a throaty tone that doesn't drone in the cab....
I ordered the dumped stainless version last week (Part # S5224409). Ill post vids on my youtube channel and pics as soon as it comes in.

Stay tuned
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  #29  
Old 04-04-2011, 04:57 PM
ben10 ben10 is offline
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Default Re: Flowmaster 40 not loud enough...

i just yanked the whole exhaust off right behind the last cat. sounds good to me, and its not super loud, but loud enough, and when it comes time to smog, it will take me 5 minutes to put a muffler on.
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  #30  
Old 04-06-2011, 07:22 PM
jaw42885 jaw42885 is offline
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Default Re: Flowmaster 40 not loud enough...

Quote:
Originally Posted by Dcrymes99ranger View Post
1 word.... MAGNAFLOW
Yeah Im switching to the magnaflow single chamber tomorrow... Anyone wanna buy a brand new flowmaster 40?? lol
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