MK7 Jetta Quad Tip Gloss Black Rear Diffuser
Requires quad exit exhaust system and R-Line or SEL Premium rear bumper
- Mfg Part #
- 027366ECS01KT
- ECS Part #
- ES#3660388
- Brand
-
This product was last offered at the strikethrough price on
05-02-2026
Free Shipping
Product Details
Requires quad exit exhaust system and R-Line or SEL Premium rear bumper
Upgrade the exterior styling on your MK7 Jetta 1.4T with our ECS Tuning Gloss Black Quad Tip Rear Diffuser. An exclusive in-house design, as seen on Jamie Orr's MK7 Jetta SEMA Build, our rear diffuser adds aggressive styling while allowing you to run a quad exit exhaust system that greatly transforms the appearance of your otherwise boring rear-end! Featuring a deep profile, an aggressive blade design and exposed tip openings, it will be sure to turn heads and set your vehicle apart.
We partnered our design and development strategy alongside VW Brand Ambassador, Jamie Orr, to bring our custom 3D printed prototype parts to a reality for the 2018 SEMA debut! Jamie later went on with functional prototypes to further test and debut our designs at local car shows, the Salt Flats and a trip from the USA to Germany where his MK7 Jetta visited famous destinations such as Wörthersee, Austria and Germany where the car, and our prototypes, were tested on the Nürburgring and the Autobahn!
** NOTE: The rear valance is only serviceable on R-Line and SEL Premium models, other trim levels will need to convert to the aforementioned trim model rear bumper to use our diffuser (see ES#4040412 instead). An aftermarket or custom-made exhaust system is required to utilize the quad tip openings. This kit is a replacement diffuser ONLY.
PART DESIGN
Designed and engineered in-house using state of the art 3D laser scanning and CAD technology for precision fitment. Mimics the design of our carbon fiber version as closely as possible for similar styling.
Featured on Jamie Orr's MK7 Jetta 2018 SEMA build and tested on the Nürburgring and the Autobahn
Made from lightweight, vacuum formed gloss black ABS polymer that is enhanced with UV-stabilizer
CNC-Machined tabs for perfect engagement
Mimics the lower section of the bumper & OE valance lines to accentuate OEM features
Utilizes the dead space behind the OE valance to simulate a functional diffuser with great depth
Outer blades blend into quad exhaust housings that accommodate up to 3.5" OD exhaust tips, on either side of the diffuser, and will work in tandem with our ECS Quad Tip Axle-Back Exhaust System or Borla Quad Tip Catback.
Mounts to OE clip locations and OE holes on the outer edges of the bumper with our supplied, stainless and corrosive resistant zinc hardware.
Includes a wrinkle black powdercoated, 5052 aluminum bracket to add rigid mounting to the center of the diffuser.
KIT CONTENTS
Vacuum Formed, Gloss Black, Rear Diffuser
Center Mounting Bracket and mounting hardware
PRODUCT DEVELOPMENT
Our ECS Tuning Quad Tip Gloss Black Rear Diffuser was designed, engineered, tested and quality inspected by our Research and Development team in our Wadsworth, Ohio facility. We partnered our design and development strategy alongside VW Brand Ambassador, Jamie Orr, to bring our custom 3D printed prototype parts to a reality for the 2018 SEMA debut!
We strive for the highest level of precision and quality through leading edge product development technology including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modelling, rapid prototyping utilizing our in-house 3D printer, and rigorous long term product testing.
INSTALLATION AND SUPPORT
- Looking for installation tips? Look no further, we put together a full installation tutorial from start to finish including how to remove your OEM valance in detail! See our Installation PDF under the INSTALLATION Tab for more information.
- PLEASE NOTE: This is for 1 diffuser kit only! A quad exit exhaust system is required to complete the installation as shown in our product photography.
- 17A807417GRU
- 17A807417
- valance
- plastic
- 17A8075689B9
- 17A807568
This Part Fits the Following Vehicles
| Make | Model | Submodel | Engine | Special Fitment Notes |
|---|---|---|---|---|
| Volkswagen | Jetta VII | Sedan | 1.4T | Use vehicle selector to confirm fitment |
Kit Contents
| Description | Brand | Qty | Lifetime | |
|---|---|---|---|---|
| Mounting Bracket - Assembly |
|
1 | YES | |
| Alloy Steel Button Head Hex Drive Screws Blue-Dyed Zinc-Plated, M8 X 1.25 Mm Thread, 20 Mm Long - EACH |
|
2 | YES | |
| Black Ultra-Corrosion-Resistant Coated Steel Washer For M8 Screw Size, 8.4 Mm ID, 16 Mm OD - EACH |
|
4 | YES | |
| High-Strength Steel Hex Nut Class 10, Zinc Yellow-Chromate Plated, M8 X 1.25 Mm Thread - EACH |
|
2 | YES | |
| Quad Tip Rear Diffuser |
|
1 | YES |
Installation
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Items marked with a 'Free Shipping On Orders $49 and Up' logo may qualify for free standard economy ground shipping to the contiguous United States (48 states) for most orders with a value greater or equal to $49.00 USD. Oversized products and direct ship products are excluded from this offer unless otherwise noted.
Free Shipping
Items marked as 'Free Shipping' may qualify for free standard economy ground shipping to the contiguous United States (48 states). Oversized products and direct ship products are excluded from this offer unless otherwise noted.
The policies listed above are subject to change at any time without notice.
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ECS Tuning stands out as more than an automotive parts supplier-it's a vibrant community fueled by a shared passion for cars. Born from the enthusiasm of car lovers, we offer an unmatched understanding and commitment to the automotive world, providing high-quality parts and accessories sourced from our own experiences. Our selection is meticulously crafted to meet the highest standards of performance, quality, and design, catering to both the latest trends and classic styles.
Our distinct advantage lies in our passionate team and comprehensive support, offering expert advice and seamless service from selection to installation. Shopping with ECS brings exclusive perks, including our Lifetime Replacement Guarantee and free shipping on orders over $49, enhancing the value of every purchase. As a central hub for car enthusiasts, ECS Tuning fosters a rich community where ideas and experiences flourish, transforming us from a mere supplier into a platform where automotive dreams come to life.
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At ECS Tuning, we understand that plans can change. That's why we offer a flexible cancellation policy for our customers. You may cancel your order at any time before you receive the shipment confirmation. This policy is designed to provide you with peace of mind and the flexibility to make adjustments to your purchases as needed. Should you decide to cancel your order, simply reach out to our customer service team, and we will assist you with the process swiftly and efficiently.
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