300 exhaust ?????
Senior User
Joined: Apr 2004
Posts: 193
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I personally have the Summit truck equiptment catalog cat-back truck exhaust it's not made from the highest quality materials, but the flow and sound in my opinion are very good. It is a single 3" pipe into the muffler, then it exits into dual 2.25" tailpipes. If flow is what your looking for I think Summit also offers the same system with 3" tailpipes,but I figured that wouln't sound as good. I belive the JEGS catalog also sells a similar exhaust system. Once my Summit exhaust craps out I want to get a hooker header and some flowmaster 40 series mufflers. My friend has a Flowmaster 40 series muffler on a cat-back system on a 98' F-150 and it sounds awsome. I can't wait to get one on my 85' inline six, and maybe my 05' 4 cylinder ranger
Elder User
Joined: Mar 2004
Posts: 784
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I will be getting a rig with the 6 in it soon and don't know much about them. Is 3 " too big for the engine? I have a spare 3" that I used on my diesel but I thought that it would be too big for the 6. Whacha think?
Posting Guru
Joined: Jul 2003
Posts: 2,454
Likes: 1
From: Adams TN
That's been debated but most say 3" is ok for a mild 300 up.
Because they have enough restriction in the head it doesn't bother low end, i actually picked up low end.
go for it if you have one, if it doesn't work for you you've lost nothing but alittle time
DT
Because they have enough restriction in the head it doesn't bother low end, i actually picked up low end.
go for it if you have one, if it doesn't work for you you've lost nothing but alittle time
DT
Elder User
Joined: Dec 2004
Posts: 742
Likes: 2
From: Eastern Iowa
Three in. will work. It is too big though, that six is only 300 cu in. after all. You would probably get the best power out of 2 1/4 or 2&1/2. But the best sound will come with larger pipe. I hope you don't think it's going to sound like a v-8! It's gonna sound like a tractor. A lot of people think it sounds like rice. I think the 300 sounds unique. A little ricey, but deeper. Like a civic that's gone through puberty!
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Elder User
Joined: Mar 2004
Posts: 784
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Tractor is good for me. That is how my diesel sounded. Since my name is Jim, my wife would call it a Jim Deere. I am looking forward to playing with this new truck. Thanks for the help.
I like the sound of it now (stock) when I can hear it over the bloody whining power steering pump. I think that has gotta be the loudest thing I have ever heard. Gotta find a way to make it stop.
I like the sound of it now (stock) when I can hear it over the bloody whining power steering pump. I think that has gotta be the loudest thing I have ever heard. Gotta find a way to make it stop.
Last edited by bchunter; Aug 31, 2005 at 12:34 PM.
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Senior User
Joined: Apr 2004
Posts: 193
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I'm pretty darn sure the 3" pipe will work on a 300, considering the fact that as I said in my post, I have one on mine. it don't sound like no straight piped 460, but what you going to do. I think it sounds good. it is definetly unique sounding but it don't sound like no honda civic. if my truck sounded like a honda civic I'd be doing something diffrent fast. I will admit though it does kinda sound like a mean a$$ tractor
One thing is for sure, it flows plenty 
Senior User
Joined: Mar 2003
Posts: 105
Likes: 0
I have a 1987 4.9 with a gutted front cat, high flow 3 inch cat going to a 3 inch 40 series Flowmaster, then 3 inch pipe exiting in front of my passenger side tire. I think it sounds great. It is very deep and not loud. I have had many people mistake my truck for a V-8. They are suprised when I tell them it is a straight six! Dual exhaust just adds extra weight to your truck, not to mention more $$$$$. I prefer single exhaust.