2015-2016 Ford F250 & F350 Diamond Eye 4 inch Stainless Steel Single Exit DPF-Back Exhaust System DE-| K4378S

Name: 2015-2016 F250 & F350 Diamond Eye 4 inch DPF-Back Stainless Steel Exhaust System
Brand: Clearance
SKU: K4378S
Price: 337.99 USD
Availability: InStock

2015-2016 F250 & F350 Diamond Eye 4 inch DPF-Back Stainless Steel Exhaust System

SKU K4378S

2 Review(s)

On sale: $337.99 ~~$646.49~~

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Retail Price: $646.49

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Highlights:

4" Diameter for Improved Outflow
5" Stainless Steel Tip
Mandrel-Bent 409 Stainless Steel Tubing
Six Year Warranty

Functional and Stylish Upgrade

Usually, you have to install a variety of different products if you want to get significantly more power, better efficiency, and lower EGTs. Luckily, you can get all of those benefits in one kit with Diamond Eye's new 4" Stainless Steel Single Exit DPF-Back Exhaust System, built specifically for the 2015-2016 Super Duty. By reducing backflow restrictions and facilitating uninterrupted airflow, you open up insane potential for power gains and also improve fuel efficiency. Meanwhile the vented, rolled angled 5" stainless steel exhaust tip serves as a stylish accent to an already beastly exhaust kit.

Efficiency, Style and Dependability

Diamond Eye constructs their advanced DPF-Back Exhaust System specifically to optimize exhaust function in the 2015-2016 F250 & F350 Super Duty. Utilizing sophisticated tools and procedures to precisely weld and manufacture each component to exact specifications, you can ensure perfect fitment each and every time with Diamond Eye exhaust kits. This system incorporates larger 4" diameter T409 stainless steel pipes for increased airflow and every component is mandrel-bent to maintain diameter at bend for an uninterrupted flow of air. Diamond Eye includes all brackets, hangers and clamps needed for installation as well as detailed instructions to make your newest performance-improving, style-defining exhaust upgrade as simple and painless as possible.

Warranty: Diamond Eye backs this exhaust system with a class-leading six-year warranty against manufacturer defect.

Fitment: 2015-2016 F250 / F350 (all cab/bed sizes)

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2015 F350

4 stars for the product, but 5 stars for Stage 3 Motorsports and Diamond Eye.. Diamond Eye had included the wrong over axle pipe in the kit, Stage 3 quickly got ahold of Diamond Eye and got the proper over axle pipe to me in just 2 days from across the country. Now, the reason for 4 stars - welds were nice, bend quality was nice, only had some tooling marks, but fitment rubs with airbags. I have the airlift airbags and the over axle pipe rubs against the airbag bracket. I grinded the corner of my airbag bracket to be round, and spun the last piece to then move the over axle piece away slightly. I am deleted, so this mated up to my delete pipe pretty decent. I understand that because I am mating this to an aftermarket delete pipe that it won't be perfect, but I assumed it would not rub against airbag. Overall a great kit, I didn't use the chrome vented tip, I got a black tip for it.

2015-2016 F250 & F350 Diamond Eye 4 inch DPF-Back Stainless Steel Exhaust System Review Image!

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Reviewed by: Brandon from Golden Valley, AZ on 7/12/2021

2015 F 350 Diesel

Unit looks good and has a little better sound than stock. Required 2 cuts for my short bed and took about 2 hours to install as a first timer. Sensor plugged right back in and have been on a camping trip out west for the 3weeks since. Great deal.

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Reviewed by: Jon from Fuquay Varina on 5/4/2018

Does the this exhaust come with the intermediate pipe gasket?

Asked by: Baker - 1/26/2023

It does not. You would need to reuse your original or purchase a replacement separately.

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Answer provided by: Jason@Stage3 (1/27/2023)

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Can you take the tip off this kit and replace it with another ?

Asked by: Dillon Hornberger - 7/6/2021

Yep. The tip on this kit is a separate part and can be replaced.

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Answer provided by: Jason@Stage3 (7/7/2021)

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looking at K4378s can I get it with a regular ss tip instead of a vented one????

Asked by: BRAD - 2/25/2020

Unfortunately, this kit only comes standard with a vented tip. Different tips would need to be purchased separately.

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Answer provided by: Jason@Stage3 (2/26/2020)

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WARNING: Cancer and Reproductive Harm

This product can expose you to chemicals including those known to the State of California to cause cancer and birth defects or other reproductive harm.

For more information, visit [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov).

2015-2016 Ford F250 & F350 Diamond Eye 4 inch Stainless Steel Single Exit DPF-Back Exhaust System DE-| K4378S

Functional and Stylish Upgrade

Efficiency, Style and Dependability

Does the this exhaust come with the intermediate pipe gasket?

Can you take the tip off this kit and replace it with another ?

looking at K4378s can I get it with a regular ss tip instead of a vented one????

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