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11-14 F150 3.5L EcoBoost Stainless Works Catted Downpipes
2011-2014 F150 3.5L Ecoboost Stainless Works Catted Downpipe FTECODPCAT
11-14 F150 3.5L EcoBoost Stainless Works Catted Downpipes
We price match! Call 623-434-5277!
Part#:
FTECODPCAT
7 Review(s)
5
0
5
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19 Customer Q&A(s)
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Product Features
7 Customer Review(s)
19 Q&A(s)
Highlights:
Massive Reduction in Backpressure
304 Stainless Steel Construction
3" Diameter
Increased Horsepower and Torque Output
Bolt-On Replacements
Will Require Custom Tuning
Vastly Improved Power without Rasp
The most restrictive part of your 2011 to 2014 EcoBoost's exhaust system is its downpipes and Y-pipe. Their small diameter and inefficient factory catalytic converters choke your 3.5L EcoBoost V6 off from making more power, especially if you've stacked on other modifications and tuning. Stainless Works' catted EcoBoost downpipes free up much of those restrictions and greatly reduce back pressure to give your powerful truck a massive improvement in horsepower and torque output, especially in conjunction with other modifications and aggressive tuning. Stainless Works' downpipes are a perfect way to push your truck's EcoBoost motor to its absolute limits and get the power and vicious sound you'll need to conquer the streets or off-road trails.
Includes High-Flow Cats and Y-Pipe Connection
The kit consists of two catted downpipes and Y-pipe connector for your cat back that measure 3" in diameter. Stainless Works carefully mandrel-bends all of this kit's exhaust tubing to ensure smooth outflow and to maximize power gains. Further reducing back-pressure are two high-flow catalytic converters that are are far less restrictive than your stock converters and also help avoid a raspy, whiny exhaust note that's common on off-road downpipe kits. This whole system is made out of high-quality 304 stainless steel that's resistant to corrosion and discoloration in any climate. These down-pipes are bolt-on replacements for stock and can hook up to your factory cat-back and stock-sized aftermarket cat-back systems.
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2013 XLT SuperCrew 4x4 Ecoboost
READ! This does come with directions, Thank You SW. Read them! Good Addition to my truck. Follow the instructions. I've done almost every bolt-on to my truck. Had this done with a professional. Use a lift! If you are going to save your old down pipe, you will have to remove transmission crossmemeber. (I save all my parts to go back to stock for warranty) Drivers side Turbo is the hardest one to get to. Once you complete the install, drive your truck for 30 minutes...or longer. You will have an exhaust leak. I had one, along with many other I read about in the Forums. Lift truck back up and tighten. Found another 1.5 days later. Fixed it. Sounds great with 3.5 exhaust. Really hear the turbos. Don't be scared to do this install it takes about 2-3 hours on a lift. But, don't underestimate it either. Overall performance off this one part, I can't tell you because I also installed Livewire TS tuner.... NEW TRUCK over all!
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Reviewed by:
(Verified Buyer)
James Redden
from Marion IL on 1/22/2016
5
2013 F-150 Lariat Screw Ecoboost
SW makes a great product! These downpipes were a great addition to my truck. The quality of the stainless steel is top notch! To test the quality of stainless steel just sick a magnet to it and if it sticks your quality is pretty poor. I assure you that no magnet will stick to these SW downpipes. I highly recommend these downpipes and as always big thanks to the Lou and the folks at Stage 3!
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Reviewed by:
Luke Duncan
from Dallas, TX on 10/22/2014
5
2012 Ford F-150 ECOBOOSTED
I love this SW downpipe. It whistles like crazy and added incredible power. It creates so much more power and amazing sound especially under acceleration!! Bottom line, Stainless Works downpipes equals .........horsePOWER!!!
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Reviewed by:
(Verified Buyer)
Ryan Lynch
from Gladstone, Oregon on 6/19/2015
5
2013 F150 King Ranch 4x4 Ecoboost
Rating 4 out of 5 because I had to re-tighten the exhaust to the turbos twice due to exhaust leaks and the y-pipe collector sits too close to the side of the transmission crossmember and causes and additional vibration at certain rpms. Will likely have to go to an muffler shop and have them re-tighten or maybe add a hanger to prevent the collector from vibrating against the crossmember.
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Reviewed by:
(Verified Buyer)
JC
from Dallas, TX on 4/20/2016
4
F150
Noticeable reduction in back pressure, may require a tune to compensate. O2 sensor location should be re-engineered. Some difficulty with installation.
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Reviewed by:
Geoff
from NY on 3/23/2017
4
2013 F150 FX4
I installed this with the SW chambered exhaust system and did the down pipes on the first weekend and the catback on the next weekend. I'm not a mechanic by trade, but know enough to be dangerous. That being said, I installed these down pipes by myself in my garage with just the front of my truck on hack stands. I'l have to say that the instructions suck. Because of the bad instructions, it took forever to take the stock down pipes off. I finally found a video online of a guy installing that down pipes on a 2015 F150. From that video I found ot that I didn't have to take off the front drive shaft. Good thing because that was what I trying to figure out when I found that video. The other thing I found out was the location of all the O2 sensor plugs. 4 in total. Also the tools that would make removal easier. I ended up cutting my down pipe because one of the bolts that hold on the transmission mounts could not be loosened which also holds one of the hangers. Once you get the stock down pipes off, the install is much easier. Just make sure you take your time to adjust all of the pipes and getting it to fit before tightening everything down. I used my high torque impact to tighten the flanges and have no leaks. This is a great product and it fits like a charm. All pipes fit with no touching of any parts. It mattered to stock catbacks with no issues.
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Reviewed by:
Tom
from East Wenatchee, WA on 10/24/2018
5
2014 F150 Super Crew 4x4
This product was easier to install than the stock equipment was to take off. The sound is good, and definitely improved the performance of my truck.
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Reviewed by:
Tony Warren
from Ft Bragg on 1/17/2016
5
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Will this work with the rest of the factory exhaust? I *hate* how V6's sound, and I do not want my truck to sound like that. Will this bolt up to the factory resonator and muffler assembly?
Asked by:
Mike
- 6/24/2021
Yep. This downpipe will fit the stock cat-back system, including the factory resonator assembly and downpipe flange.
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Answer provided by:
Jason@Stage3 (6/28/2021)
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I have a a tune on my truck from a company that can’t retune now unfortunately. But my cats are rusted out and need new ones but I’m scared to sense I can’t retune. Am I able to swap them with out retuning?
Asked by:
Dante Papalia
- 4/18/2021
If you currently have high-flow cats, then you can replace them with these downpipes without a retune. If you currently have OEM cats, then you would need a retune to use these downpipes. If you're looking for OE-replacement cats, give us a call directly at 623-434-5277 or email us at
[email protected]
.
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Answer provided by:
Jason@Stage3 (4/19/2021)
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Do I need defoulers with this down pipe?
Asked by:
Bobby
- 3/21/2021
That somewhat depends on what tuner you're using, however, since these downpipes use high-flow cats, they will likely throw a CEL on the rear oxygen sensors on their own.
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Answer provided by:
Jason@Stage3 (3/22/2021)
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Is there ANY benefit to doing something like this if I run regular gas? Yes I have a tuner and yes I will pay to have it recalibrated, but don't want to spend the extra $20-$30 every fill up for premium.
Asked by:
Mike
- 4/9/2018
You'll still see some power gains using 87 octane fuel and tuning, due to how restrictive the factory cats and downpipe are, though you'll definitely see a lot more when using premium fuel. Whether it's worth it or not to you depends on how much power you're actually hoping for versus how much you're willing to spend.
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Answer provided by:
Jason@Stage3 (4/10/2018)
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With a tune, will this downpipe pass emissions? (MA specifically)
Asked by:
Dan
- 10/10/2017
This downpipe is not guaranteed to pass emissions and will likely cause a CEL for cat efficiency due to its high-flow catalytic converters, and most tuners disable the rear oxygen sensors with high-flow catted downpipes, which would cause you not to pass due to cat readiness. The only downpipe that is virtually guaranteed to pass emissions is the
Kooks GREEN Catted Downpipes
.
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Answer provided by:
Jason@Stage3 (10/11/2017)
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In the description, it mentions that the Y-pipe will require custom tuning in order to avoid engine damage and avoid CELs. Can you explain why this alone without tuning cause engine damage?
Asked by:
cruz gandara
- 6/26/2016
Downpipes (even catted downpipes) flow enough air and reduce back pressure enough that they lean our your truck's Air/Fuel Ratio by at least some extent, and could cause a lean condition in your engine under the right circumstances. Tuning is required to increase fuel rates and adjust fuel curves to prevent that, while also disabling the rearward oxygen sensors to prevent a CEL.
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Answer provided by:
Jason@Stage3 (6/27/2016)
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Will this down pipe work good with the chambered exhaust I think the the s- tube exhaust is to loud for me not sure witch one to go with ?
Asked by:
David
- 2/7/2016
If you're concerned about overall loudness, then you'd want to use the Chambered system with this set of downpipes, rather than the S-tube, as the downpipes will increase sound volume by some extent, and the Chambered cat-back kit is the more mellow of the two.
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Answer provided by:
Jason@Stage3 (2/8/2016)
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Hi, I already have a 4" cat back exhaust, intake, and Sct live wire tuner with 5 star tunes. Is there a rough estimate on what gains I could expect to see from a new down pipe?
Asked by:
Kevin M
- 2/1/2016
That's going to depend on the specific tune you're using and what octane you're using. That being said, it's possibly to pick up 30lb-ft of torque or more at the tires by adding a downpipe into the mix, with similar peak horsepower gains.
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Answer provided by:
Jason@Stage3 (2/2/2016)
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Would this have capability to fit the 2014 F150 V6 3.7L? Maybe with minor adjustments?
Asked by:
Bro D
- 11/4/2015
It won't at all. The downpipe will only fit 3.5L EcoBoost F150s, due to the fact it bolts onto the turbocharger's turbine housing.
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Answer provided by:
Jason@Stage3 (11/4/2015)
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Does your company make a Y-Pipe for the F150 3.7L V6?
Asked by:
Bro D
- 11/4/2015
We do not, unfortunately. A local exhaust shop should be able to custom build one for you without too many problems.
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Answer provided by:
Jason@Stage3 (11/5/2015)
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I'm looking to get more turbo sound. I added a 4" Diamond Eye exhaust from you guys and it gave it some but had little more drone then I wanted so added a flow through resonator...which in turn slightly less drone but seemed to kill turbo sound from my exhaust. How much will these catted downpipes add for turbo sound AND also drone? Hoping to get the absolute most turbo noise without to much drone. What mods would you recommend to hear turbos without increase in exhaust volume (if any)
Asked by:
drh442
- 7/7/2015
I guess it kind of depends on what you mean by "turbo sound", if you're taking about getting a more noticeable spool sound or whine, then these downpipes can help, though they will increase the sound volume of your system and can add mild amounts of drone, though their cats help keep them pretty civilized. Unfortunately, it's extremely difficult if not outright impossible to find a cat-back/downpipe combination that preserves some whine while keeping drone down. Your best would be to call us directly at 1-877-578-2433 so we can get more specific with what you're looking for and what you have.
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Answer provided by:
Jason@Stage3 (7/8/2015)
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if installing catted downpipe on a stock tune or mild tune, with the O2 sensors, will it pass emission? What performance gain might be seen from installing the without changing the tune?
Asked by:
jim
- 12/28/2014
You likely won't pass emissions when using the stock tuning. There's always a chance that your truck with throw a readiness code with aftermarket downpipes. You may see some gains (maybe 10-20 horsepower), but they'll be nothing compared to a properly tuned truck.
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Answer provided by:
Jason@Stage3 (12/29/2014)
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The sound of your exhaust is about the best I've heard from aftermarket. However, I kind of like the quiet of stock, but am more interested in the power/torque gains of the catted downpipe. I don't see in your videos any presentation of this product as a stand-alone change. How does the stock sound change with this combination? What power/torque gains does it provide from stock? And how about in combo with 5 Star tunes I would get with this?
Asked by:
Mark
- 11/21/2014
In general, you'll get a slight increase in overall volume with a smidge more drone at cruising due to the high-flow cats, but it actually won't change sound too much if you keep the factory cat-back system. As far as power gains, it's tough to say, because they're heavily dependent on your tune, available fuel octane, and your F150's drivetrain. Still, power gains of up to 100rwtq aren't out of the question, depending on tune, octane, and driveline.
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Answer provided by:
Jason@Stage3 (11/24/2014)
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Will a truck with this kit installed still be able to pass emissions since it still has the CATs?
Asked by:
dj
- 10/30/2014
In general, no. There's too many variables consider given that each state/province/county/area has different methods of testing and that most custom tuner will disable the O2 sensors (even with catted kits) which will cause a failure on an OBD-II test.
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Answer provided by:
Jason@Stage3 (10/30/2014)
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What about an emissions test that is not OBD-II? Where they just hook up hoses to the back of the exhaust.
Asked by:
dj
- 10/30/2014
Again, we can't guarantee that these downpipes will pass emissions. The cats are much smaller than stock, and while they tend to be more efficient per cell-count than stock cats, there's still a good chance that your truck may not pass a sniffer emissions test either. The only kit that will for sure is the
Kooks GREEN Catted Downpipe kit
. While pricey, it's the only kit we carry that is EPA certified and guaranteed to pass emissions testing, if your tuner doesn't disable your F150's O2 sensors.
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Answer provided by:
Jason@Stage3 (10/30/2014)
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I hear a lot more about solo catted, but to me the SW catted seem better built. Does SW use quality cats? I can't decide between solo catted or SW catted. If theres nothing I'm over looking, I would have to say the SW are a better downpipe. What is your opinion on them?
Asked by:
J.T.
- 10/18/2014
"Better" is kinda subjective territory, but I'll break down some of the differences. The cell counts in the cats are exactly the same, and both are pretty high quality. The Stainless Works kit is made from 304 Stainless Steel, while the Solo-Performance Catted Downpipes are made with 409, giving the Stainless Works kit a hardiness advantage in places with heavy salt. Now, one of the reasons why the Solo downpipes are so popular (despite being made from lower-grade stainless steel) is that they have a built-in resonator just before the cat-back connection, which helps eliminate drone, making them probably one of the quietest downpipe kits on the market. Performance-wise, it's kind of tough to say, as the gains you'll see from a given downpipe will largely depend on your choice of custom tuner.
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Answer provided by:
Jason@Stage3 (10/20/2014)
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Will this work with the Afe cat back exhaust?
Asked by:
Bradley
- 7/26/2014
It will fit with the aFe kit and any other cat-back kit designed to fit the factory mid-pipe.
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Answer provided by:
Jason@Stage3 (7/31/2014)
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What size (inches) is the exhaust pipe down stream of the Y?
Asked by:
Josh
- 8/14/2013
This Y pipe has 3 inch tubing on each runner down to the Y pipe, after the y pipe the tubing is 3.0 inch. This mates to your factory 3 inch exhaust, or the stainless works 3.5 inch cat back options.
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Answer provided by:
Administrator (8/14/2013)
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Can this downpipe get shipped to a CA address? Thank you, Bruce
Asked by:
Bruce
- 8/12/2013
Yes this can be shipped to you in California. Keep in mind Stainless works sells this as an Off Road use product. So you may want to check local laws before you install it. This is not CARB Approved.
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Answer provided by:
Administrator (8/12/2013)
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F150
21-22 3.5L EcoBoost
21-22 2.7L EcoBoost
21-22 3.5L PowerBoost
21-22 5.0L V8
2021 3.0L Powerstroke
2021 3.3L V6
18-20 3.5L EcoBoost
18-20 2.7L EcoBoost
18-20 5.0L V8
18-20 3.3L V6
18-20 3.0L Powerstroke
15-17 3.5L EcoBoost
15-17 2.7L EcoBoost
15-17 5.0L V8
15-17 3.5L V6
11-14 3.5L EcoBoost
11-14 5.0L V8
11-14 6.2L V8
11-14 3.7L V6
09-10 4.6L & 5.4L
04-08 4.6L & 5.4L
97-03 V8
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21-22 Raptor 35
21-22 Raptor 37
17-20 Raptor
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19-22 2.3L EcoBoost
11-16 T6
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08-10 6.4L
04-07 6.0L
94-03 7.3L
Mustang
05-09 4.0L V6
05-09 GT 3V 4.6L
07-14 Shelby GT500
11-14 3.7L V6
11-14 5.0L GT
15-17 3.7L V6
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15-18 GT 5.0L
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