4 inch exhaust for ecoboost?
 

Ok, I've done the research and I want to go with a 4" exhaust on my Ecoboost. My question is: does any manufacturer other than Heartthrob make the 4"? I love the heartthrob sound, performance #'s and the fact that they claim a 1.1 mpg improvement over stock to boot. I just am not sold on an alumamized exhaust instead of SS. I was thinking of going with the HT exhaust and having it PC'd black to match the rest of my truck. I wonder if that would also help prevent rust?

I was just doing some research on Magnaflow and it looks like they have 3 different offerings.

Perhaps I'm reading it wrong, but it looks like their single full-length exhaust is a 4". And there is a sound clip/video to boot.

I'm not so sure about the sound, however. I closed my eyes and saw a honda ... albeit a big honda ... but still ....

They are stainless and Magnaflow has a reputation for quality.

Magnaflow is high quality stuff. But, a V-6 should be quiet as possible. No matter how many turbos and other hi-tech goodies it has, it is still a whiny V6 underneath.

I'll offer an anticdote to think about with regard to replacing your stock exhaust with something made of aluminized pipe.

3 years and 35,000 miles ago I replaced the stock exhaust on my exploder with something more aggressive sounding. Straight through 2-into-1 muffler and a new tail pipe, which was made of aluminized pipe.

Today, i get to choose whether to spend the 200 bucks all over again, or just listen to the horrible "leaky air tank" sound i have coming from under my truck.

If i had it to do all over again, i'da told them to throw the stock exhaust in the back so i could put it back on now. The stock pipes were fine, i just wanted something different.

just something to think about.

FWIW, 4" is overkill for the EB.

Read some Testing done on Diesels. Anything over 5" is jsut bling on 90% of the 400 CI+ Diesels. They gain no advantage on the Dyno with larger exhausts.

I'd stay away from ANY exhaust that is not full SS.

I'd hardly call the Ecoboost a "whiney V6". IMHO, the 4" exhaust offered for this sounds better than the stock system (which is dead quiet for the most part). I know some people like less noise, but it would be nice to hear a bit of the engine and the turbos spool up.

Just my .02

Be advised that the Twin Turbo Ecoboost is NEVER going to sound anything like a V8! The guys at Roush Performance have a new exhaust for the Ecoboost...which will be available soon. Roush makes great exhaust systems for V8 engines...but even the wizards at Roush couldn't make the Ecoboost sound great. My Ecoboost exhaust will stay quiet and stock, rather than sound like a teenager's import car.


Roush Ecoboost exhaust

ROUSH 2012 F-150 Eco-Boost Exhaust - YouTube

Exactly! The 4" exhaust has been proven multiple times on the dyno (makes more hp than duals) and ear dyno with the EB. It makes the turbo's whistle, adds mpg and gobs of tq/HP to boot!

No offense, but I'm not a fan of the Roush sound actually, that sounds like the "import" you described (plus, not even that drone can drown out the most annoying directional sound EVER put in a vehicle). They'll probably charge an arm and a leg for it too.

I know it will never sound like a V8 (had a Bassani on my 04 5.4L XLT and loved it, plus the WICKED pipes on the e39 M5 I just sold), but the Ecoboost should still sound better than it does...or at least make a noise to begin with.

again, my .02

No offense taken. Though I'm a big fan of Roush and I'm glad that they are trying something for an exhaust for the Ecoboost, I don't care for the sound of the Roush exhaust either....yes, it does sound like an import...just like all the other aftermarket exhaust kits for the Ecoboost have sounded to me. Which is why I plan to leave my exhaust alone....stock and quiet.

Roush usually uses a chambered muffler not unlike a Rustmaster. At least they did on my buddies 03 Roush truck.
A V6 is a V6 no matter how you dress it up, so it will always sound like one. Loud does not equal fast. :D

That sounds for all the world like one of those annoying "ricers".......V8 or nothing.
Never have a "boy's toy to try and do a mans job!"

You guys are funny. You're just upset because you'll be hearing the V6 as we pull away from you and don't like the tone of the exhaust :P

Do I wish the truck sounded like a V8?...hell yeah. Nothing sounds like an 8 with pipes.

Am I second guessing the EB V6 because it's not loud?...hell no.

Would I like my truck to make a noise...period...instead of being pin-drop quiet?....hell yeah.

All a matter of taste. In my mind, the Magnaflow (Heartthrob) exhaust doesn't sound ricer at all. The Roush does. Again...my opinion. And I don't remember anyone saying the louder the exhaust, the faster the vehicle. Just look at Harley Davidsons.....

I have to admit, i did like the way the roush exhaust let the sound of the turbos spooling up come through.

another concern for me would be the volume of the exhaust note while towing.

I'm afraid to say that i might be getting old .... if what they say is true.

LOL..no admitting to aging!!

I think the magnaflow 4" let the turbo spool be heard much better (maybe more aimed at performance/turbo breathing) than the Roush (more tuned for sound over performance).

I wonder if "true dual" exhaust would sound good ??? OR would it sound twice as bad !!

I think a true dual exhaust on this motor would sound bad, imho. V8s sound fantastic with that setup, with a nice little x-pipe in the middle, but not on this motor.

Solid advice. Aluminzed is fine for dry climates/vehicles that are more pampered ie muscle/sports cars. Look to a SS muffler and/or a SS system. Many companies are now offering lifetime warranties (something we have been doing for years) hold on to that receipt though. Good luck on your choice.

Ok, what about buying the SS muffler of my choice and getting some SS tubing to replace the resonator. What size exhaust is on the stock ecoboost 2.5" or 3"? Do I purchase t304 or T409?

Exhaust system material thickness should be no less than 16 gauge- double-walled pipe was commonly available through the 1970’s until manufacturers began seeking ways to reduce costs. Many of the “Muffler Chains” who marketed lifetime warranties always used double-walled pipe before “stainless steel” became the “in-crowd”. If a shop had it available, I would choose double-walled aluminized coated steel or 14 gauge stainless steel (depending on environmental conditions or personal tastes) - it is very quiet, solid and in terms of costs, pipe is pretty cheap, depending on length, 16 gauge aluminum coated runs about $11 to $20 wholesale (depending on diameter), stainless about double for the same gauge.

OMFG!! :-X14 ... that is the lamest truck sound I have ever heard. Ford got it right guys, the Ecoboost should be seen and not heard.

I think the stock exhaust is just under 3" OD, at least it is at the tailpipe.

T409 is preferred because a bit easier to work with but T304 is good as well. We use a lot of T409 in our systems. Not too sure on the stock size honestly yet, haven't seen or got the info yet. Often people with newer cars tend to care more about their vehicles so go this route. I also know lots who just cut out the stock muffler and throw in the appropriate muffler to open up the system. Keep that receipt close.

With my Grand National (3.8 turbo V6) with mild to moderate cam and stainless steel 2.5" straight through type muffs its sounds great at idle. Like a nicely cammed small block with some compression. But off idle its just ok because its a V6. On boost however its actually quieter but sounds great because you can also hear the turbo. Having a good blowoff valve(s) that lets you hear the turbo(s) is possibly more important to getting some head turning big grins sound.

You don't need more than a 3" downpipes and 2.5" straight thru type muffs to get to the point of a near zero backpressure or loss system unless you making over an honest 500HP.

Grand National :-X07 One of the first cars I drooled over in a garage in my early 20's. The kid was so privildged and so cool to hang out with.

Let's not forget there are twin turbos on the EB motor, and running a single 2.5" pipe would most likely produce some backpressure. The stock pipe diameter is almost 3", so why go smaller?

Downpipes plural, muffs plural, nobody said anything about routing it together into a single pipe. :)

Indeed Vern...yet nobody said anything about 2.5" on dual pipes either. Still..why go smaller than what's on the truck now?

I think the magnaflow 4" system is fantastic, just not the choice of materials. So if you're making your own, why not mimic that system with better piping of your choice rather than routing true duals, of which most will be custom bends and fabrication?

sound is a benefit but 40 hp and 50fl/lbs of torque is a reason. no exhaust system in the world can do that to a naturally aspirated v8. PS it may not sound like a v8, its sounds powerful instead.:-blah

I personally don't like the sound of a piped V6, never did, but do own a egoboost and just love passing the V8 guys like they are missing shifts.

Is there an aftermarket pipe/muffler combo that will release additional power without the additional sound for the EB?

Wow, this one is an old thread, but it's probably still a pretty popular topic.

I personally love the sound of the Heartthrob exhaust, but that drone would get real old on those long winter tows..

I just want a little deeper sound on mine and dual tips like the Raptor has them. Am afraid to change the muffler though as I would hate to have a ricer sound.
But think about how many expensive sports cars have a V6 and don't sound like a ricer.