headers and exhaust
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headers and exhaust
am going to change the stock exhaust on my 04 5.4L 3 valve screw F150. was planning on edelbrock 1 5/8 ceramic shorties, h pipe, no cats and flowmaster 50 series mufflers. are headers worth the extra money? 3 factors being increased power, fuel mileage and sound. all i've ever done before were performance cars and the headers made a huge difference. also noticed a lot of people on here suggesting magnaflow over flowmaster. do they sound better? i am new to this site and new to upgrading trucks, so any insight would be appreciated
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i noticed a few people replacing the muffler with straight pipe. does that sound good? it would obviously be the cheapest option. was looking at spending prob $1500 to do headers, h pipe and dual mufflers. but the cheaper the better obviously. also i have been told that i would have to get an h pipe custom made. true?
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From: Canton, IL
Everything I have read here suggests that staying with a single-out exhaust maintains the engines low end torque. Other have stated that a Magnaflow SIDO catback systems sounds great. I am beginning to think that it is truly the owners preference and that very few exhaust mods on these trucks make a difference to power or MPGs, just the sound.
I have heard comments to the gist of 'making an engine breath better in and out only raises the power band', I agree with this notion. Most tend to suggest gears and a tuner to get a performance feel from thier trucks.
I have heard comments to the gist of 'making an engine breath better in and out only raises the power band', I agree with this notion. Most tend to suggest gears and a tuner to get a performance feel from thier trucks.
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From: Magnolia,TX
If you are going to install headers make sure they are long tube instead of the shorties. It took me 9 hrs to remove the old and install the headers.
You will get better torque out of the long tubes, after I installed mine I was at 255tq on the dyno at the rear wheels.
You will get better torque out of the long tubes, after I installed mine I was at 255tq on the dyno at the rear wheels.
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From: CSofA
headers i would not do that again if you paid me one big pain in the *** i went with ford racing shorties $230 long tubes can be a problem for 4x4s
http://media.putfile.com/the-bird-of-prey
http://media.putfile.com/the-bird-of-prey
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From: North Dakota
Originally Posted by dadirtydogg
i noticed a few people replacing the muffler with straight pipe. does that sound good? it would obviously be the cheapest option. was looking at spending prob $1500 to do headers, h pipe and dual mufflers. but the cheaper the better obviously. also i have been told that i would have to get an h pipe custom made. true?
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Originally Posted by Panzerbrumbar
I had them pull the muffler and turn the exhaust down right behind the axle and I love the way mine sounds. The problem with pipes it seems like unless you spend a ton of money on them they rust out and mounts are always busting. I like the look of mine were you see no pipes and it sounds great.
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also, would i see any gain in power or mileage from running without a muffler? that wouldn't negatively affect my backpressure or anything would it?
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From: CSofA
i made two runs down the 1/4 strip with the muff off ran the same time as with it on. that was before the headers.
http://media.putfile.com/the-bird-of-prey
http://media.putfile.com/the-bird-of-prey
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Originally Posted by 73mach1
i made two runs down the 1/4 strip with the muff off ran the same time as with it on. that was before the headers.
http://media.putfile.com/the-bird-of-prey
http://media.putfile.com/the-bird-of-prey
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From: North Dakota
Originally Posted by dadirtydogg
is that on a 5.4L?
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From: Mirror, Alberta
Originally Posted by dadirtydogg
am going to change the stock exhaust on my 04 5.4L 3 valve screw F150. was planning on edelbrock 1 5/8 ceramic shorties, h pipe, no cats and flowmaster 50 series mufflers. are headers worth the extra money? 3 factors being increased power, fuel mileage and sound. all i've ever done before were performance cars and the headers made a huge difference. also noticed a lot of people on here suggesting magnaflow over flowmaster. do they sound better? i am new to this site and new to upgrading trucks, so any insight would be appreciated
I still say that the best bang for the buck is a tuner, with my preference being the Diablosport Predator.