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Old Jan 15, 2004 | 10:46 PM
  #1  
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Question flowmaster

i was wondering how much my gas mileage would increase with a flowmaster 40 series on my 351 bronco.
 
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Old Jan 16, 2004 | 01:15 AM
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if you do get an increase, it will be a trace amount maybe 1/4 mpg but you should pick up a tad bit of HP and Tork, remember the more of these little thing you do, the more difference it makes. Good Luck DW
 
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Old Jan 16, 2004 | 07:40 AM
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hp

Dw is right a slight increase .but if your like me listening to them pipes---- makes ya hpes go down unless you drive saneTR
 
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Old Jan 16, 2004 | 07:41 AM
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True, the muffler alone may give a slight increase to mileage, but when you put your foot into it more often to use that extra power, the net increase will probably be a bit lower.

IMHO, I have a Flowmaster 40 on my bronco. For a trail rig or weekend warrior it would be fun, but the noise is a bit much for day-to-day or long highway cruising, especially because my combo of gears, tires, exhaust length, etc make a crazy resonance at 35-40 mph and again at 55-60 mph. It does quiet up a bit at freeway speeds, though.
 
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Old Jan 16, 2004 | 09:00 AM
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i like the sound of my flowmaster on my 351. gas improved little like mentioned above, but who cares about that when u r showing off? -wb
 
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Old Jan 16, 2004 | 03:52 PM
  #6  
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yeah im more worried about the sound of the muffler iwas just wondering if i would get anymore gas mileage cause you guys all know how much gas they eat.
Thanks
 
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Old Jan 16, 2004 | 04:38 PM
  #7  
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Well if you are like me, and didn't want to big of a sound but still wanted the performance, you can go with the system I got. I have the Borla catback system designed for our trucks. It has a nice rumble but it isn't obnoxious.
 
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Old Jan 17, 2004 | 12:44 AM
  #8  
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Put Flowmaster on my 94 last Spring, haven't stopped loving that sound, but go Flowmaster got a 2 chamber 40 series, it was $200 for the 3" system, but well worth it!!
 
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Old Jan 18, 2004 | 12:34 PM
  #9  
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Hey 94Bronco58i was wondering how much a k&n filter was for your bronco cause i know theyre pretty spendy compared to other vehicles.
 
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Old Jan 18, 2004 | 12:34 PM
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Hey 94Bronco58i was wondering how much a k&n filter was for your bronco cause i know theyre pretty spendy compared to other vehicles.
 
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Old Jan 18, 2004 | 12:36 PM
  #11  
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Hey 94Bronco58i was wondering how much a k&n filter was for your bronco cause i know theyre pretty spendy compared to other vehicles.
 
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Old Jan 18, 2004 | 03:18 PM
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Are you talking about the FIPK or the drop in filter? The FIPK cost me 160, but I got a deal on it, I think everywhere else it runs a little over 200, but it also depends if you have Mass Air or Speed density, the Mass Air is 130 without a deal, but the drop in is 40 bucks from autozone, or Kragen. I definitely reccomend getting the FIPK though, I absolutley love the sound, power increase, and slight gas mileage increase, not alot but noticeable.
 
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