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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 12-02-2012
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OHV aftermart exhausts!

I want to put an exhaust on my ranger but i want something that is a deep sound and not very loud. just loud enough to be noticed that its not stock. Im planning to cut the CATS off so Im not sure if that will make a difference. so if I could get some videos of your exhaust or some types so i can look it up.
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Old 12-03-2012
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cant go wrong with the Flowmaster 40 series. i have 2.75in piping running from cats back into a single in dual out 40 series. 3.5in tips at a 45degree angles.

not very loud at all. (enough to hear down the street though) pretty deep tone around 2300 to 3000 rpm. above 3k does get a bit louder and less tone but still a good sound for a v6. i could put a pic up for you soon.

Removing your cats would make it louder though. Not entirely sure, but if you remove your cats.. your O2 sensors wouldnt have anything to plug into. Dont think it would pass inspection at least not in NC. you can always find that shop that will pass you though.

All in all, to still have the cats and stock headers my truck sounds good. (i think)
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Old 12-03-2012
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Well in ohio we dont have an inspection so it wouldnt matter and my O2 sensor comes before my cats so it shouldnt afftect it at all
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Old 12-03-2012
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Any chance you could take a video of start idle and reving or driving?
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Old 12-04-2012
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Look up the MBRP kit. I'm happy with it and a couple other members are either looking at getting it or have it also.
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Old 12-04-2012
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Do not cut off the cats, IMO. Back pressure that is crucial for these engines to produce power will decrease. Indeed it will sound a little louder, but I prefer power over loudness.

I have a SOHC, with 2.5 piping after the last cat, then a Flowmaster Super 44, then 2.5" duals under the bumper. Sounds great and has very little resonance. More piping=less resonance. The sound is deep and throaty until high RPMs, but that is to be expected, it is a V6 lol.

But as Morris suggested, I as well have been hearing people are enjoying their MBRP systems.
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Old 12-05-2012
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i agree with jelly. removing the cats wouldnt be worth it in my opinion. i would post a vid for you.. but i have a misfire right now and it wouldnt sound right on vid :/

[

^^^ i would say mine sounds close to this just quiter because of my cats. im running same setup except my pipes are .25in smaller.
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Old 12-05-2012
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Just a heads up with the mburp kit, it's a straight through design so there is very little back pressure after those cats. I thought about adding a tailpipe with a bend since there is some resonation in the cab but haven't gotten around to it and 90% of the time its only me in the truck anyways.
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