Exhaust doesnt add performance...true or false?
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Exhaust doesnt add performance...true or false?
On my lunch break i drove down to meineki just to get a quote. This dude said it would cost me $500 for dual exhaust w/Flowmaster 40 . (first of all i wouldnt pay that much unless it was a Cat-Back Name brand). Then i said i didnt want duals, just to replace the OEM muffler w/ a Flowmaster or Magnaflow, keep everything else stock. He still quoted me $150-$175. Then i asked for his opinion, i said i didnt want to loose performance, if anything, gain a little at top end. He said it didnt matter anyways. "That no matter what you do to your exhaust, the performance will stay the same" and "That the best thing to do would be to keep the factory system". Ok, now after reading everyones PROVEN performance gains with proper equiped systems, im convinced that dude was nuts. My next question, has anyone here with a 4.6L performed kinda what im looking for? Just to cut out the OEM, and install an aftermarket muffler? If so, what did you go with and what was the "performance" outcome? Also, if anyone lives in Northern VA, DC or MD, let me know of some place that wont try to take an arm or a leg for something so simple. I appreciate any info from anyone.
Thanks in Advance!
Blazin_STX
Thanks in Advance!
Blazin_STX
Post Fiend
Joined: Mar 2005
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From: Louisiana
I was trying to get my uncle to do the same thing with a 5.4L, just to cut out factory muffler and put in a Flowmaster. It would increase HP alittle bit, but don't expect to feel the difference, just 5 hp or so. BUT it would sound better! Try to go to a exhaust shop to get them to do the work for you, they'd do just as good for usually cheaper.
The flowmaster mufflers cost around$70-80 for one of the cheaper ones, then around $20-30 to cut off old muffler add some pipe and then weld the flowmaster in place.(your factory muffler is around 33" long so get a 13" or so flowmaster and get them to add the rest on the length in with pipe.) That's what they did for my uncle and charged him $25 to do the work, because he just brought them the muffler.
The flowmaster mufflers cost around$70-80 for one of the cheaper ones, then around $20-30 to cut off old muffler add some pipe and then weld the flowmaster in place.(your factory muffler is around 33" long so get a 13" or so flowmaster and get them to add the rest on the length in with pipe.) That's what they did for my uncle and charged him $25 to do the work, because he just brought them the muffler.
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From: Mcdonough GA
on my 04 screw with the 5.4 I had a local muffler shop put a SI/DO flowmaster 40 series muffler with 4 in tips coming straight out the back of the truck. it cost 284.00 total. I love the way it sounds and yes there was a small increase in performance , enough that my seat of the pants dyno could feel it. would do it again in a heart beat . Personally I wouldn't let meinke touch my vehicle I would find a local muffler shop that would be willing to let you see there work and maybe if they had one on the rack or finished let you hear it to see what you like
Fleet Mechanic
Joined: Mar 2005
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From: Dedham, MA
a true cat-back system with mandrel bent tubing and larger pipe diameter will add HP, or should i say "free it up" from the stock system. Just adding a muffler is negligible, as people mentioned here.
This is another reason i won't trust meineke or speedy shops, what mechanic in their right mind would say that a quality performance exhaust won't make a difference?
This is another reason i won't trust meineke or speedy shops, what mechanic in their right mind would say that a quality performance exhaust won't make a difference?
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I have a 04' SCREW with 5.4, and I took a 40 series flowmaster, and a 4" tip. I had meineke cut out the bus of a stock muffler and weld up the flowmaster. Then a 4" x 24" long tip form pep boys. This tip will resonate the sound and give it more rumble. As far as performance is concerned, I picked up a lot in second gear. The truck roars out of first and launches into second. Also I would suggest popping in a K&N air filter to free up the air at both ends, also remove the factory baffles leaidng into the air intake. These baffles are limiting the airs abilty to come into the motor unrestricted. Don't worry about air tempature it will not affect HP more than an 1/2 or so. Overall you will most certainly feel a diffrence from stock. Everthing should set you back $150 at the muffler shop (offer cash) and about $48 for the air filter.
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This is another reason i won't trust meineke or speedy shops, what mechanic in their right mind would say that a quality performance exhaust won't make a difference?[/QUOTE]
An honest one is my guess. I have put custom cat back systems on both of my trucks and while a dyno may show a change in horsepower I haven't noticed an increase. As for mileage, maybe a mile more per gallon on the f250 and nothing on the f150. As always your results may vary.
An honest one is my guess. I have put custom cat back systems on both of my trucks and while a dyno may show a change in horsepower I haven't noticed an increase. As for mileage, maybe a mile more per gallon on the f250 and nothing on the f150. As always your results may vary.
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Originally Posted by Reave1
I have a 04' SCREW with 5.4, and I took a 40 series flowmaster, and a 4" tip. I had meineke cut out the bus of a stock muffler and weld up the flowmaster. Then a 4" x 24" long tip form pep boys. This tip will resonate the sound and give it more rumble. As far as performance is concerned, I picked up a lot in second gear. The truck roars out of first and launches into second. Also I would suggest popping in a K&N air filter to free up the air at both ends, also remove the factory baffles leaidng into the air intake. These baffles are limiting the airs abilty to come into the motor unrestricted. Don't worry about air tempature it will not affect HP more than an 1/2 or so. Overall you will most certainly feel a diffrence from stock. Everthing should set you back $150 at the muffler shop (offer cash) and about $48 for the air filter.
Also, what did you mean by "Removing the factory baffles"? Not sure what you were refering to. I DO have the drop in K&N Filter & Throttle Body Spacer, that alone has increased HP that i can definately feel, seems to have a better reaction too. Thanks in Advance.
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Peace and Quiet Please
I don't know what the big infatuation is with noisy exhaust systems. Between pickup owners and their flowmasters, ricers/posers and their fart cans, and harley owners and their straight pipes, its just noisy and irritating. There's a term for it - its called noise pollution. If I wanted to listen to that, I'd go to a nascar race.
Thank goodness the F150 is so quiet with the windows rolled up. As for me, I have much better things to do with my money then flush it down the toilet for an infinitessimal perceived (if you are lucky) slight HP gain.
Thank goodness the F150 is so quiet with the windows rolled up. As for me, I have much better things to do with my money then flush it down the toilet for an infinitessimal perceived (if you are lucky) slight HP gain.
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Originally Posted by ibm135
I don't know what the big infatuation is with noisy exhaust systems. Between pickup owners and their flowmasters, ricers/posers and their fart cans, and harley owners and their straight pipes, its just noisy and irritating. There's a term for it - its called noise pollution. If I wanted to listen to that, I'd go to a nascar race.
Thank goodness the F150 is so quiet with the windows rolled up. As for me, I have much better things to do with my money then flush it down the toilet for an infinitessimal perceived (if you are lucky) slight HP gain.
Thank goodness the F150 is so quiet with the windows rolled up. As for me, I have much better things to do with my money then flush it down the toilet for an infinitessimal perceived (if you are lucky) slight HP gain.
Blazin_STX
p.s. has anyone heard the expression
"If Its to Loud, Your to Old?"
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Joined: Mar 2003
Posts: 692
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From: Saratoga USA
I agree with IBM135. Ford spends alot of time and money to engineer an exhaust system that:
1) Does not make too much noise, but
2) Performs well with the vehicle it was designed for
3) Fits properly without rubbing and with the spare tire installed under the truck
4) And is made of quality materials that last a long time
The major restriction in a modern truck are the 4 (count 'em) 4 converters. Lowering the "restriction" after the converters is really a waste of time, IMHO. The seat of the pants improvement I think is more a reaction to the extra noise than a real performance boost. All that being said, I still like the looks of twin tailpipes, and I think Ford ought to offer that as an option from the factory!
1) Does not make too much noise, but
2) Performs well with the vehicle it was designed for
3) Fits properly without rubbing and with the spare tire installed under the truck
4) And is made of quality materials that last a long time
The major restriction in a modern truck are the 4 (count 'em) 4 converters. Lowering the "restriction" after the converters is really a waste of time, IMHO. The seat of the pants improvement I think is more a reaction to the extra noise than a real performance boost. All that being said, I still like the looks of twin tailpipes, and I think Ford ought to offer that as an option from the factory!
Post Fiend
Joined: Mar 2005
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From: Louisiana
You know ggarrahan, flowmaster, gibson, borla, and many other company's spend many hours enginering exhaust systems to give you more HP better looks and the deep or LOUD tone you want(the person who buys it). These company's improve what Ford had on the truck.
Post Fiend
Joined: Mar 2005
Posts: 8,542
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From: Louisiana
The louder the better.
[QUOTE=BLAZIN_STX p.s. has anyone heard the expression
"If Its to Loud, Your to Old?"[/QUOTE]
I've heard this expression before, and I must be real young, because I like my trucks LOUD! Not just any loud like headers(even though that's not bad) I like mine to have a good deep an mean tone and at the same time LOUD.
"If Its to Loud, Your to Old?"[/QUOTE]
I've heard this expression before, and I must be real young, because I like my trucks LOUD! Not just any loud like headers(even though that's not bad) I like mine to have a good deep an mean tone and at the same time LOUD.