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4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 05-21-2006
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Which magnaflow?

I decided I want a Magnaflow muffler. I searched and found them to be what Im looking for. Next I started looking for the muffler. Well there are a lot of different choices of Magnaflow mufflers. I want a single 2.25 inlet with a single, or dual outlet. Questions... Will there be much sound difference between a single outlet and a double outlet? Second, is there a difference in sound between the round and oval models? I have a 99 4.0 that is mostly stock motor wise. I want a nice rumble at idle and a little attention when driving. I dont want an annoying raspy sound. Anyone got some answers? I also don't want to remove any cats. I would also like to know if the pipe going straight back vs. a 90 degree exit will make a difference?
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Old 05-21-2006
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I have the Magnaflow 2.5 in, and 2.5 Dual outlet. With the magnaflow dual exhaust, what i found in my experience, with the exhaust tips they give you, you will get a nice deep tone, pretty loud when cruising. If you really want some noise, i went with magnaflows 4'' exhaust tips Part # 35109. Youll get ALOT more noise out of those, mine at about 3,000 RPM's in 3rd gear will set car alarms off, WITH all my cats, and stock manafolds. The magnaflow dual exahust kit with the 4'' tips and K&N intake will make your truck SCREAM, Trust me.

The single kit ive never heard, but seeing how it has an increased diameter in the tailpipe im guessing it sounds relatively the same? But ive always found the dual out the back to be louder then a single, just more places to get the noise to exit etc etc.
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Old 05-21-2006
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basically, sound will be determined by case size, the larger the case, the quieter it will be. when you decide which one you want to go with, just let me know, ill get you a good price and match anyone elses.
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Old 05-21-2006
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So an 11" long muffler will be louder than the 14" one? What is everyone else running? I want a definate sound increase but not raspy or overwhelming. Anyone got advice? 11" or 14" oval?
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Old 05-21-2006
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12158
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Old 05-21-2006
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i would go with the 14 inch case
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Old 05-22-2006
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Hi, new here, but anyway, I've just put in, a couple of weeks ago, a new cat back, custom from a local speed/muffler shop.
I went with the magnaflow 18 in. oval with 2.5 in exhaust pipe, no tip, it has a nice low rumble and is not obnoxiously loud, (the diam. between the cat and muffler is 2.25).
I'm told, by the guy who made and installed, a 14 in. sounds nice but at higher rpm's and acceleration, you would have to crank up your tunes, you'll get a bit more noise in the cabin. It all depends on what your after I guess.

Pint

ps: btw I'm old lol (mid 40's) and only wanted the better performance, not the noise, so I'm guessing a 14 in. would be good, a bit louder but not obnoxious
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Old 05-22-2006
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I thought the 2.5 in 2.5 dual was overkill and that the 2.5 in 2.25 dual was best?
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Old 05-22-2006
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could be overkill, but then mine is single in/single out, still it sounds really nice and I definately noticed an increase in throttle response and performance
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Old 05-22-2006
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Pn 12158...
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  #11  
Old 05-23-2006
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Quote:
Originally Posted by pintofhooky
could be overkill, but then mine is single in/single out, still it sounds really nice and I definately noticed an increase in throttle response and performance
On single in/single out i thought the 2.5 was ok, but was bad for duals
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Old 05-23-2006
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all I could say was I read somewhere that with this engine size 2.25-2.5 exhaust is about as big as you want to get
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Old 05-23-2006
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Mines 2.5 in and out....Runs fine, and sounds even better....on the 4.0
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Old 05-23-2006
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For sarahs i had them neck down the outlet side to 2.25.

PN12158...
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Old 05-23-2006
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i too have been thinking about getting a magnaflow. i want to just replace the stock muffler, and add a big tip on the back.
since optikal, keeps saying PN12158, i think i will go with that one soon
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  #16  
Old 05-24-2006
optikal illushun's Avatar
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YAY!

description:
Description: 5x8x14" Body, 2-1/2" Single In, 2-1/2" Dual Out perfect...like i said i had the exhaust shop neck down the 2 1/2" outlets to 2 1/4 and i feel that was a very smart idea and he agreed. dual 2 1/2" tail pipes seemed a little large for a stock 4.SOHC.
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Old 05-24-2006
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ohh it's dual out. ehh... i wanted single. What if i capped one end, or just ran one all the way back, and dumped the other one?
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  #18  
Old 05-24-2006
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12216 for a center in/out
12226 for a center in/offset out

both are SI/SO...
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  #19  
Old 05-25-2006
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well bob knows what i got...and its loud enough for me
any louder and i wouldnt be able to talk to anybody in the passenger seat going down the road...that would be terrible for dates
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