So you think 4" tips is the way to go also? 2.50 inch pipe with x-pipe be good also or 3" pipe and x-pipe?

 

Go with 2.5" pipe. 3" is to big for the 4.6 engines due to backpreassure. I wont explain cause Im sure you've heard it a hundred times. It will just kill your bottom end. Even with that X-pipe.

If I had my bill(they took it when I took the truck in for the appointment) I could tell you what everything cost.

I remember alittle so here it is

2 glasspacks-25ish each- $50
2 SS tips-20ish each-------$40
labor----------------------$70

That equals 160 if im correct, and the total was 225ish, so that means the pipe cost around 65 dollars. (aluminized pipe, NOT stainless)

Hopefully that will give you an idea of the price.
So if prices are somewhat the same that would be around 175 for pipes,labor and tips, plus whatever your mufflers cost, which if your going 40 series Flows would be around 140 a pair, so around $325?? roughly if prices are somewat the same there as they are around here.

Good luck

 

Is two mufflers better than one with two outtake? Before i install my exhaust system is having two mufflers better than just one and which sounds louder and deeper with flowmaster mufflers?

 

I had a local fella dual out my exhaust here in Wichita Falls, Texas for $179 + tax. That was going from the cats back to the bumper with all new stuff (including two cheapie turbo-thrush muffs).

I specified to the pipe dude to cross the left bank's pipe where the Y used to be. The right bank pipe drops under the left pipe and it proceeds back to the axle where the right bank pipe makes a turn and exits at the bumper in the area of the frame with a stealthy turndown. The left bank goes straight back to the bumper on the right frame rail with it's own hidden turndown.

Flipping the pipes from one side to the other makes both pipes approxamately the same length. The sound is very mellow, not at all like the one-into-two magnaflow that a lot of folks are getting. I get a lot of comments on how mellow the truck sounds ('97 f-150 with 4.6L, 2wd). It's not very loud (I save the noise for my Harley). It has a cool growl, while not droning (annoyingly) at highway speeds. Also, this is a true dual exhaust as it has no crossover pipe or x-pipe. Each bank exhausts independently.

The muffs are narrow and are mounted side by side while standing on their edges. They take up very little space, kind of like this: " ()() ". Each muff has one pipe in and one pipe out.

I haven't really gotten a feel for any change in gas mileage, but I am taking a road trip to Arizona in a few weeks so we'll have to see about that. Running around town here with the 126k logged on the odometer, I'm getting around 14.5 to 15 mpg. I usually get around 17-18 on road trips.

I seems to have a good bit of grunt off the line and hauls a pretty good bit of butt while the go-pedal is denting the floor mat. I rarely do that though, given this truck's mileage.

If you are interested, I can snap an e-photo of the undercarriage to show you this peculiar exhaust design. Thanks to the fellas out at Bartosh Muffler Shop in WF, TX.

On a side note, if you're from Mississippi, shouldn't you be going to MSU or Ole Miss? What are you doing in MO??? I recently moved out of MS for TX after living there for 5 yrs. in Columbus.

Oh well, I enjoyed reading your (and your respondents') thoughts on your truck's exhaust. Like you, I gave a lot of thought to my exhaust before settling on this present setup.

My truck has 126K on the clock so I don't do a helluva lot of racing. I leave that to the young fellas when they flog their four-bangers. They give me a pretty good laugh.

Rodney

 

i had an 83 full size bronco
and i had hooker block hugger headers with 2.5 inch true duals no cats no mufflers and it sounded badass
that is what i would reccommend

 

people have told me to use 2.25" pipe on my 97 4.6l? is that a good size or too small or what? give me some reponses quick because im planning on it this weekend. thanks!!!!

 

mine i believe has 2.5 from the factory and I have a 4.6L I know for a fact the pipe coming out after the muffler is 2.5 I would go at least with 2.5 but i think you should already have it.

Josh

 

what? in a true dual they cut off all the pipe to the cats n then add pipe....if a single pipe is 2.5" then dual pipes should be less becuase you have 2 outs instead of one...so i guess i just answerd my own question. thanks anyways

 

LB51, go with 2.25 inch if you are going true duals. UNLESS you have/plan on getting mods like an intake, chip etc, then go with 2.5 inch. I have a completely stock 4.6 liter with 2.5 true duals though and I didnt lose much power. The small amount I lost is barely noticable. So if you can handle a VERY slight decrease in power or are planning on more performance mods, go with 2.5, unless your going no mods and dont wanna lose any power(thats why they say to go with 2.25, no power loss then).

Yes, the stock pipe is 2.5. That is just single though.

 

i'm thinking about adding an intake like k&n or sumpthing...but that wont make that much difference would it?

 

I put a K&N intake system on my truck and it up my gas mileage and power also. I also replaced the old spark wires and plugs and installed new Bosch 4+ plugs and Bosch wires and my gas mileage when from around 15-16 to 19-20. I'm hoping the exhaust will help gas mileage also. Then I plan on getting a programmer. Thats why I'm going with 2.5 with a X-pipe and 2-Super 40 Flowmaster mufflers and 4" tips out the edges of the bumper. I'm hoping it will sound sweet. I hope i help you out some.

 

I would just go with 2.5 then. There isnt much notacible difference, plus that intake will help it a little. Once the mod bug hits you will probably end up with a programmer or chip and the like, so it would be better to get 2.5 now instead of going back and having to replace your 2.25 for 2.5. Trust me, that bug hits hard 2.5 will sound better than 2.25 anyway, deeper and mellower sounding


Josh, is your intake a Gen1 or a 77 series. If its a 77 Series do you have any pics of it? THanks

 

how do them bosch plugs work...I've heard that people have been having problems with them in there trucks....thanks for the info..ill go with 2.5" because ill prolly keep this truck for awile and add sum stuff. thanks When i called meineke to see howd they do true duals on my truck they said something about the cats....what do they have to do with the cats on my 4.6l? thanks

 

Some trucks have the cats back away from the exhaust headers but with your model the cats are not a problem when trying to true dual. I'm guessing you have 2.5 from the factory that has a Y-pipe into one pipe then into the muffler that comes out infront of the tire like mine. What I'm going to do tomorrow is get them to cut the y-pipe before it comes into one pipe and install a X-pipe then two flowmaster mufflers offset then out the edges of the bumper at the corner of the truck with 4" SS tips. The wires work great but I might go next time with DENSO Iridium spark plugs and maybe bosch wires again. I think I have the series 1 the 77 is chrome right?

 

Not sure if they are chrome. But the 77's have alittle box thing to separate it from the engine compartment and the Gen. 1's are just open. I was just wondering because Ive been wanting an intake but I dont want any of that open(no box or anything to separate it form the engine compartment) crap. I noticed the 77's have a little divider thing so I just wanted to see how much it sealed the filter off from the engine area.





Haha I thought they only did brakes.

Like Josh said, they dont even have to tough the cats to put duals on. All the important stuff is before the y pipe.

I thought I was gonna have pictures by now, but when I went to get them they werent done yet, and I live 70 miles from where they are.
So depending on how long it is till you get your exhasut done I might have pics. Probably wil be another week.