2011-2014 F150 Diamond Eye 4" Cat-Back Exhaust Kit (Stainless) K3330S

11-14 F150 Diamond Eye 4' Stainless Single-Exit Cat-Back

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Part#:

K3330S

26 Review(s) Write a Review

23 Customer Q&A(s)

On sale: $484.66 ~~$1,012.53~~

Retail Price:$1,012.53

Your Savings:$527.87(52%)

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Product Features
26 Customer Review(s)
23 Q&A(s)

Highlights:

Adds an aggressive sound and reduces backpressure
Deep, throaty exhaust tone with more volume
Deletes resonator for increased sound
4" diameter tubing
409 stainless steel construction
Fits all wheelbase sizes

Great Sound and Extra Performance for your F150

Diamond Eye has been in the truck exhaust game a long time, and they've used their knowledge to come up with an awesome 4" cat-back exhaust system that can give your 2011 to 2014 F150 a nice boost in power, fuel economy, and a great sound. Diamond Eye's 4" Cat-Back Kit features a stock-style single-exit design that keeps your truck looking clean and mean while it produces a big, aggressive rumble that will instantly catch everyone's attention. Diamond Eye's large tubing, unique muffler, and more efficient manufacturing enables this system to bring new life into the 3.5L EcoBoost V6, 5.0L V8 or 6.2L V8 of the F150s.

4" Diameter Mandrel-Bent Exhaust Tubing

This aggressive Diamond Eye Cat-Back Exhaust Kit bolts on right in place of your truck's factory exhaust system in an easy installation that can take less than an hour. The Diamond Eye kit features 4" diameter tubing that's all mandrel-bent to help improve exhaust outflow and reduce restrictions. The kit is made out of 409 stainless steel and comes standard with a high-performance muffler that produces a deep, throaty, and aggressively loud tone to give your truck a great sound to go along with all that power. The kit comes with both hardware and detailed instructions for installation.

Fitment: 2011-2014 Ford F150 3.5L/5.0L/6.2L.

This cat-back exhaust kit deletes your factory resonator for a more aggressive tone.

Check out our install guide of this cat-back kit on our 2012 F150 5.0L FX4 Project Truck!

Warranty Info: Diamond Eye backs this aluminized kit with a 6-Year Limited Warranty.

Lower Bedside Trim Note: if your F150 is equipped with black trim on its lower bedsides where the exhaust exits, please ensure that the Diamond Eye's exit is past the bedside or that your trim is removed to prevent melting.

Write a Review

2013 f150 super crew 5.5 bed 5.0v8

Great exhaust. Fit perfect, sounds awesome. They're is a little drone at highway speed but it's nothing to drive you crazy. Great system for the price and really brings the 5.0 to life.

Did you find this helpful? 12 of 13 Found Helpful

Reviewed by: Jacob Scaggs from Cincinnati Ohio on 7/6/2014

MR.

Easy to install , and it sounds great ! The Ecoboost is an awesome engine and this exhaust really brings it to life .

Did you find this helpful? 9 of 11 Found Helpful

Reviewed by: Jordan Mester from Quincy IL on 7/21/2013

2012 F150 5.0

Sounds amazing with the 5.0 and most importantly there is little to no drone, only noticeable at 1900 RPMs. Only reason it's not 5* is because I needed to cut a clamp 3/4 shorter to make it fit right but that's the only complaint I have.

Did you find this helpful? 6 of 6 Found Helpful

Reviewed by: John from Minnesota on 3/19/2015

2010 F150 5.4L

I have a 2010 F150 5.4L. This kit was not made from my engine configuration. However with $15 I got an adapter I was able to make it work. Couldn't be happier with the sound. The tone is very deep. I went from Flowmaster outlaw to this hopes of less highway drown. It worked perfectly. Couldn't be happier with my purchase. Perfect exhaust system.

Did you find this helpful? 6 of 6 Found Helpful

Reviewed by: (Verified Buyer) William V from Texas on 8/24/2021

2014 Ford FX4, 5.0 Liter V8

Great deep exhaust sound without the rasp. Just what I was looking for. Sound inside the cab is agressive and sounds good on the gas and settles out nicely. Like most systems, there is slight drone at around 1800/1900 but minimal in my experience. Happy wirh my decision.

Did you find this helpful? 5 of 5 Found Helpful

Reviewed by: Darryl S from Coastal Ga on 4/17/2015

2012 Ford F150 XLT 5.0

Additional Equipment: K&N CAI When I first installed this system, I had to readjust the flange several times before it was equally sealed. The stock exhaust manifold has a 3 inch flange and a 2.5 inch pipe, so it takes a bit of time to get it right. When you first start it, it is LOUD. It does mellow out considerably after a few hundred miles, but it echoes and resonates in the cab until then. If you are coming from a stock setup, this is going to take some getting used to. HOWEVER, after ~200 miles, it is almost silent at idle and cruise speeds, roaring to life when I hit the gas. This is exactly what I was looking for when I purchased this exhaust. I am glad I stuck through the break-in period, and I would now (obviously) recommend this cat-back system to anyone looking for that subtle roar on their F150.

Did you find this helpful? 5 of 5 Found Helpful

Reviewed by: Eric Hagen from Cincinnati, OH on 4/25/2016

2012, ford, fx4 screw ecoboost

I've had it on for a week now and I love the sound of it on my Ecoboost , really brings a little boost of performance along with my AFE CAI. seems like right off the line I get off about the same maybe quicker but when the rpms start increasing u can really feel the extra push. inside the cab it's a little loud, but nothing that will drown out a conversation or music. it sounds louder and a lot more throaty. May wake the neighbors some days but it's not too bad. I can stand around back my house lock the truck and auto start, hear the cold start pretty loud but the sound then dies back down. Mph may have increased by .5-1.0 hard to tell by the way a drive. Installation wasn't too hard to figure out like most say, getting off the stock took longer then installing the new piping, idk what some people say about getting it off by there selves, no lift, no jack, nor jack stands. If your at stock height, there's no way to get the stock exhaust off without cutting it unless it's jacked up. Two men make the job a lot easier and jack stands come in handy when installing the pipes to rest them on the jackstands at a level height. Just my two cents. the stainless steel looks great. I got a 5 black exhaust tip along with this and it looks great. I like being able to see the thick shiny piping going over my axle. Overall diamond eye did good with this product, came with everything needed, and the additional pipe if you have a longer wheel base (which I dont). Thanks stage three. Also there is a great installation video on YouTube just search Diamond eye ecoboost installation and there's a 15 minute video of a deisel shop installing this exact exhaust.

Did you find this helpful? 5 of 5 Found Helpful

Reviewed by: Chris m from Maryland on 1/20/2015

2011 F-150 FX4 Ecoboost Supercrew/6.5' Bed

Awesome exhaust fits perfect,took a couple of hours with a buddy to install.Clamps are very good and secure. Sounds great, no drone in cab at highway speeds, good rumble at idle, definitely noticed fuel improvement,1-3 mpg, sounds good when romp on it and you can hear turbos singing!! Best exhaust and the best $

Did you find this helpful? 4 of 4 Found Helpful

Reviewed by: Scott Alexander from Independence,MO on 8/16/2014

2012 F150 5.0 Screw

Installed by myself in less than 2 hours. Sounds great, it is a bit loud until it breaks in. Very nice sound, sounds a lot like the video clip stage 3 has on it. It's there and lets everyone know you have a v8 when your accelerating quickly then let off and it's quiet. Very pleased with the exhaust and quality of the exhaust system.

Did you find this helpful? 3 of 3 Found Helpful

Reviewed by: Ken Young from Idaho on 4/17/2017

2015 F150 supercrew

Took about an hour to install. Flange was a little bit of a hassle but well worth the price! This kit fits 2015-2017 fine!

Did you find this helpful? 2 of 2 Found Helpful

Reviewed by: Bryce M from Wisconsin on 4/20/2017

2014 f150

Great exhaust and sound for the price. Just have to make sure the flange is lined up perfectly but all you need is a buddy to help you out on that. Sounds sick

Did you find this helpful? 2 of 2 Found Helpful

Reviewed by: Tucker from Cape cod on 10/5/2015

2014 F150 6.2L

Great product and the sound is amazing. Perfect fit for my CCLB pickup.

Did you find this helpful? 2 of 2 Found Helpful

Reviewed by: John Hughes from MI on 12/23/2017

2014 F150 3.5L

I really like the sound of the exhaust. There's a little drone from 2000-2500 or about 70-75mph. Thinking about adding the Diamond Eye resonator down the road. See how it goes after the exhaust burns in. The directions could be better as to which way the hangers need to go. The extension pipe did need to be cut for the size of the truck, 2014 3.5L crew 6.5' bed.