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Author
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Topic: WTF? New Flowmasters, way too quiet
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Trellabor
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Member # 5496
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posted
 
 
So, i just had some original 40-series 2-chamber flowmasters put on my 85 GT in place of the old stock mufflers. I've had them for a few days, but man, they are SO quiet! I thought they would be way louder. Is there some sort of break in period on these things? I hope they get louder, or i am going to be way disappointed.
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1989 Mustang LX 5.0 AOD
1999 Mercury Mountaineer 5.0L
Posts: 148 | From: Sacramento, CA | Registered: Mar 2005
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Blind
2.3L
CAFords OG
Member # 3052
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posted
does your `85 have duel exhaust from the headers back?
either way, with a stock h-pipe the car will be very quiet with any mufflers, the catelytic converters (4 of them on the duel exhaust h-pipe, I dunno about the single exhaust y-pipes).
you'll need an off-road h-pipe or x-pipe if you want it to be truely loud.
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89 LX Notchback ex 4cyl, 14psi
02 Harley F150, 15psi
Posts: 8521 | From: Fairfield | Registered: Jul 2003
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Hungry Hippo
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Member # 537
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posted
you need horsepower
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05 S4 Avant(wagon)
09 C6 H/C/I
Posts: 2959 | From: east bay | Registered: Nov 2001
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TRIXSNK
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Member # 2844
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posted
I believe recently Flowmaster has been selling 2 types of 40 series 2 Ch mufflers.
I set is supposed to be a bit mellower than the other....maybe those are what you got...i had them on my old Cobra.
See the thread in the general section from "racirx" about them releasing an "old" style louder muffler still called a 40 series.
![[patriot]](graemlins/patriot.gif)
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9 Sec EVO 9 is GONE!
New project in the works.......
Posts: 3740 | From: Bay Area | Registered: May 2003
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Camaro Kid Z/28
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Member # 3100
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posted
mine are pretty bassy,but i do not have tail pipes on them. but they are 2 chamber and i have the true dual on my 84 LX.
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1973 Camaro Z/28(clone)
http://www.cardomain.com/ride/2649130
"4-eyes forever essay!"
Posts: 6429 | From: 408 | Registered: Jul 2003
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Wildfire532FB
CAFords OG
Member # 1482
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posted
It takes a while for the oils to burn out of them and they will get louder
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68 Fastback
84 CJ7
94 HMMWV
95 GT
03 F350
17 Fusion Hybrid
Posts: 17578 | From: 530 | Registered: Jun 2002
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Mr.Lucky
CAFords OG
Member # 1772
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posted
also eliminate the pipes from muffler back, ie: convert to dumps. Much throat-ier and deeper sound, though im runnin an o/r H soon to be o/r X. So its a bit louder.
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95GT: Bolt ons.
Good sellers/buyers: Stangs R Us, 1SicGt, sn4bwc, racsirx, WickedStang, Autumnstang97, cali95gt
Posts: 4197 | From: Manteca | Registered: Sep 2002
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Trellabor
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Member # 5496
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posted
Its gotten a little better after about 400 miles or so. I've read it can take up to a few thousand miles for them to get to the 'loud' flowmaster sound they are known for. Part numbers indicate they are original 40's.
I'd rather not go with dumps, i like the tail pipe look and i can do without the resonance in the interior gained by removing them completely.
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1989 Mustang LX 5.0 AOD
1999 Mercury Mountaineer 5.0L
Posts: 148 | From: Sacramento, CA | Registered: Mar 2005
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Wildfire532FB
CAFords OG
Member # 1482
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posted
quote:
Originally posted by Trellabor:
Its gotten a little better after about 400 miles or so. I've read it can take up to a few thousand miles for them to get to the 'loud' flowmaster sound they are known for. Part numbers indicate they are original 40's.
I'd rather not go with dumps, i like the tail pipe look and i can do without the resonance in the interior gained by removing them completely.
I love my dumped flows, I am going to put dumps on my Fastback also. Not sure if i am going to go with flows or what though.
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68 Fastback
84 CJ7
94 HMMWV
95 GT
03 F350
17 Fusion Hybrid
Posts: 17578 | From: 530 | Registered: Jun 2002
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WayFastYTee
Yes I'm Whipped!
Member # 6116
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posted
original 40's as in the black sig 1's they just came back out with?..Cause im gonna be getting those and ive heard they are Louder than the regular 2 chambers?
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89 GT, Chica Ba Wow!!!
I think Putter has a Crush on me! Im flattered :X
Posts: 1029 | From: rohnert park | Registered: Oct 2005
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Trellabor
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Member # 5496
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posted
I had dumped 3 chambers on my '87 LX. The interior resonance was insane, you'd hit 2k rpm and it was just one big 'humming' sound. I thought it was cool at first, but it just made my head hurt after awhile.
I've just got the original 40's, not the re-released ones. The ones you are talking about are supposedly louder than the ones i have, but i think they just sound less 'tinny'. Original 40's sound, to me, like they have a very metallic, hollow sound to them. The newer ones do not sound like that, but they are still mean as hell. Go to the Flowmaster website, and you can hear soundbites of the different mufflers, idling, revving, and taking off. Pretty cool;)
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1989 Mustang LX 5.0 AOD
1999 Mercury Mountaineer 5.0L
Posts: 148 | From: Sacramento, CA | Registered: Mar 2005
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hidnn.o.s.
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Member # 1219
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posted
Dumps are garbage and will kill Dana's car ![[Frown]](frown.gif)
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R.I.P. Willie G. You are missed on this forum
Posts: 15950 | Registered: Apr 2002
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Wildfire532FB
CAFords OG
Member # 1482
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posted
quote:
Originally posted by hidnn.o.s.:
Dumps are garbage and will kill Dana's car
No way it'll be the baddest Fastback ever especially with this bad boy under the hood
http://chevystreetperformance.com/428_525HP_AAL.htm
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(]]]_ _ o _ _[[[)
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68 Fastback
84 CJ7
94 HMMWV
95 GT
03 F350
17 Fusion Hybrid
Posts: 17578 | From: 530 | Registered: Jun 2002
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