Another Straight Exhaust Question
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Freshman User
Joined: Oct 2004
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Another Straight Exhaust Question
Looking to change out the exhaust on a 01 to a straight system without muffler and I have a couple of questions.
I see 3 1/2 and 4 inch downpipes listed. What is the differnece other than the diam. of the pipe. If the 4 inch fits why would you think of installing a 3 1/2 inch pipe?
Stainless or Aluminum? How long will the aluminum last?
Any suggested brands based on ease of installation and fit?
Thanks
Richard
I see 3 1/2 and 4 inch downpipes listed. What is the differnece other than the diam. of the pipe. If the 4 inch fits why would you think of installing a 3 1/2 inch pipe?
Stainless or Aluminum? How long will the aluminum last?
Any suggested brands based on ease of installation and fit?
Thanks
Richard
Freshman User
Joined: Mar 2005
Posts: 43
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Depends on what you plan on doing with the truck, if you plan on doing a ton of towing, stick with the stock downpipe, if you want the truck to fly, go with a bigger downpipe but this will kill your low end torque compared to the stock.
Postmaster
Joined: Dec 2003
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From: STEPHENVILLE,TX!!!!!
larger exaust wont kill your low end tourque the turbo provides all the back pressure needed. ive been running a 4" dp and 5" out the side on my 97
the 4" dp is just a tighter fit with an automatic trans and sometimes ou may have to adjust the pipe cause it will touch the trans.
the 4" dp is just a tighter fit with an automatic trans and sometimes ou may have to adjust the pipe cause it will touch the trans.
Posting Guru
Joined: Aug 2004
Posts: 2,417
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From: Braham MN
Here, read this, basicaly the same question, just alot more info about the low end Torque and the sound of a S.P.
https://www.ford-trucks.com/forums/s...d.php?t=368369
I suggest Diamond eye, there available from motorhaven, its a two piece DP, which I think is easier to install, and it was like $140.
Diesel Rod
https://www.ford-trucks.com/forums/s...d.php?t=368369
I suggest Diamond eye, there available from motorhaven, its a two piece DP, which I think is easier to install, and it was like $140.
Diesel Rod
