your headers and exhaust
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Postmaster
Joined: Jul 2003
Posts: 3,934
Likes: 0
From: iowa
your headers and exhaust
what do you guys with headers use for exhaust after getting long tubes. I got an estimate of $250 for new 2.25 pipe on my truck. Or would using mufflers after the headers be practical?
Posting Guru
Joined: Jul 2003
Posts: 2,232
Likes: 1
From: Colville, Washington
Mufflers right after the headers don't seem to last very long. I think its the heat, it also resonates like crazy right under your feet in a std cab p'up. I use 2 1/2" pipes, with a 2 1/4" crossover, and mufflers exit in front of the rear tires.
Post Fiend
Joined: Sep 2000
Posts: 8,238
Likes: 3
From: Oregon
Agreed. If you use mufflers with any sort of packing behind the headers they will burn out pretty quick. I did this once and the noise in the cab was pretty gruesome too. I usually run my exhaust past the cab and dump out before the rear axle. This gives you less bends in your line, which equals less restriction and also less cost to install.
Elder User
Joined: Dec 2003
Posts: 534
Likes: 0
From: Hoquiam, WA
I did the "Mufflers under the cab" thing. What a mistake, couldn't hear myself think (which may or may not be a good thing).
I ended up having the mufflers moved back to mid-bed and then dumped towards the ground just in front of the axle.
I ended up having the mufflers moved back to mid-bed and then dumped towards the ground just in front of the axle.
Post Fiend
Joined: Feb 2001
Posts: 6,624
Likes: 8
From: Missouri
I run 3" pipe from the headers back to my flowtech warlocks. They have the plugs you can remove to bypass the muffler. I have turndowns right out the back of the muffler and it dumps right before the rear axle. It does make the cab a little noisy but its nothing compared to the open header sound. I have thought about running it all the way to the back as I don't use the exhaust pipes at the track anyway. I'll give up 10HP on the street for a little comfort.
Posting Guru
Joined: Nov 2003
Posts: 1,888
Likes: 1
From: Iowa
i have 2 1/4 exhaust comeing out of my headers that exit right before the real wheels with dual tips comeing out in front of the rear wheels on both sides, i dont know how it sounds as my 390 isnt back in the truck yet.
Elder User
Joined: Feb 2004
Posts: 835
Likes: 0
From: Fort Rucker, AL
I am working diligently on my truck and just recently put Flowmasters on and ran the pipe out the back under the bumper. I love the sound. BUT I can't get the exhaust manifolds to stop leaking. One of my manifolds I know is warped. Rather than change the exhaust manifolds could I put headers on with my Flowmasters?
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New User
Joined: Feb 2004
Posts: 20
Likes: 0
From: PORTLAND
i have 21/2 out of headders about 2 feet to flowmasret y to 3 inch to 1 big flowermaster muffler under bed across from saddle tank and 3 inch that dumps just past rear tire on pass side sounds great and smokes the tires good to 72 f250
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Joined: Dec 2003
Posts: 6,461
Likes: 4
From: Smith Mountain Lake, VA
I run 2 1/2" out of the hedders with a 2 1/4 crossover tube..
Right now it has heavy California compliant mufflers on it
{they will be Flowtechs}
And they come out with chrome tips just in front of the rear
tires!! Makes it Nice in the Cab!!
And I also have done the right out of the hedder thing!
With some Thrush bolt on bullits!!!!
{ Big Mistake} Huh? Hello? EHHH? LOL!!
Right now it has heavy California compliant mufflers on it
{they will be Flowtechs}
And they come out with chrome tips just in front of the rear
tires!! Makes it Nice in the Cab!!
And I also have done the right out of the hedder thing!
With some Thrush bolt on bullits!!!!
{ Big Mistake} Huh? Hello? EHHH? LOL!!