dual vs single
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Senior Member
Joined: May 2002
Posts: 131
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From: Alabama
dual vs single
dual seems to be most popular of the two. any major reason, or is it maily the looks? anyone knnow the advantages or disadvatages of the two?
can anyone clarify on the "duals usually result in torque loss" myth or fact?
can anyone clarify on the "duals usually result in torque loss" myth or fact?
Senior Member
Joined: Jan 2001
Posts: 975
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From: W. Van., BC, Canada
Most people will agree the best solution is to replace the factory y-pipe with a flomaster piece, replace the garbage-can OE muffler with a 3" SI/SO performance muffler and a single 2.5 or 3inch tailpipe.... like a Gibson sweptside type system... not that I condone any single manufacturer... Gibson mufflers (non-stainless) seem cheap.
Unless you're running 350-500+ HP this is the most economical and powerful combo.
While some duals may sound nicer (subjective) you have extra pipe = more weight, more expensive for nothing.
In case you missed it we've discussed it to death here: https://www.f150online.com/forums/sh...threadid=73370
My 2 cents.
Unless you're running 350-500+ HP this is the most economical and powerful combo.
While some duals may sound nicer (subjective) you have extra pipe = more weight, more expensive for nothing.
In case you missed it we've discussed it to death here: https://www.f150online.com/forums/sh...threadid=73370
My 2 cents.
Senior Member
Joined: Sep 2000
Posts: 1,704
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From: Mpls, MN
My '97 4.2L responded very well to cat back duals. I noticed right away that my truck felt lighter accelerating from a dead stop and passing on the highway.
Back pressure is a big consideration. Reduced back pressure is good for high RPM horse power but very bad for low RPM torque.
A high flow muffler with a single 3" exhaust pipe should give a small increase in noticable power and sound good as well without much of an expense.
I have duals because I liked the look of 2 shiny, slash-cut tips comming out the back. It's a Dynomax Turbo muffler. The pipes are 2.25" and the tips are 3.5". Sounds very good as well.
Back pressure is a big consideration. Reduced back pressure is good for high RPM horse power but very bad for low RPM torque.
A high flow muffler with a single 3" exhaust pipe should give a small increase in noticable power and sound good as well without much of an expense.
I have duals because I liked the look of 2 shiny, slash-cut tips comming out the back. It's a Dynomax Turbo muffler. The pipes are 2.25" and the tips are 3.5". Sounds very good as well.
Senior Member
Joined: Jun 2002
Posts: 176
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From: Oklahoma
Duels for sure
I personally had my Y pipe split by the o2 sensor and had two going inot the muffler and two going out. The only one that I could find to do this was a brand called Mean Streak. I have heard that Flowmaster now has this too. I highly recomend two going in and two going out of the muffler instead of a single in and duel out. MORE POWER!!!!!
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Joined: Jun 2002
Posts: 63
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From: regina, sask. canada
I am having mine tomorrow. I am getting a Vortex Cherry Bomb with one in and two out. Have had a couple of buddies do it and the flow restriction is basically nill. They said it seemed to increase power a bit and is costing 300.00Can.
We'll see tomorrow??
We'll see tomorrow??