MK7 GTI Functional Aerodynamic Rear Diffuser Kit
- Mfg Part #
- 014482LA01-01KT
- ECS Part #
- ES#4508224
- Brand
-
This product was last offered at the strikethrough price on
06-13-2026
Free Shipping
Product Details
The ECS Tuning MK7 GTI Aerodynamic Diffuser combines function, form and aesthetics to provide an increase in downforce without the additional drag created by a wing. To design our ECS Aero diffuser we started by 3D scanning our shop MK7 GTI. Then a 3D model of the full car was created in CAD utilizing our scan data. To further develop and tune our diffuser we utilized CFD analysis to find the best possible balance between downforce and drag, while minimizing flow separation. This results in more consistent diffuser performance across a wide range of conditions, ride heights and suspension setups.
Meticulously designed to provide bolt on fitment, requiring no permanent modifications to your vehicle when combined with our ECS Tuning Exhaust.
Pair this diffuser with our Fuel Tank Street Shield Skid Plate to improve efficiency (ES#4477687), or utilize our Ultimate Street Shield Kit to maximize efficiency (ES#4485271).
Add our MK7/MK7.5 GTI & Golf R Functional Aerodynamic Rear Wing Kit (ES#4616085) to complete our rear Aerodynamic package. Functional Aerodynamic Front Splitter coming soon!
PART DESIGN:
- This Diffuser is in-house designed and engineered to provide functional aerodynamic benefits, specific to the MK7 GTI body, using FARO ARM laser scanning technology and SolidWorks 3D CAD modeling for precision fitment along with CFD to provide the best balance between downforce while minimizing drag.
- Made from lightweight, vacuum formed UV-stabilized gloss black ABS polymer
- Mounting brackets are made from 5052 aluminum powder coated wrinkle black
- 4" Stainless Steel Turndown Tips
- Developed and fine tuned using CFD with our in house MK7 GTI 3D model
- Mounts to the chassis for secure fitment
- Designed to work perfectly with our ECS Tuning Exhaust System - Tips must be removed
KIT CONTENTS:
- Upper Diffuser Section - Gloss Black
- Lower Diffuser Section - Gloss Black
- 2x 4" Stainless Steel Turndown Tips
- 2" X 50ft Exhaust Wrap
- 2x Rear Subframe Bolts
- All necessary mounting brackets and hardware
PERFORMANCE FEATURES
- Assists with rear tire contact by applying downforce over the rear axle. This is very beneficial on FWD vehicles where rear traction loss may occur at high speed cornering.
- Performance data metrics are collected utilizing CFD (Computational Fluid Dynamics) software to validate our design
- Simulation shown in the product photos represents airflow with the vehicle traveling at 120mph
PRODUCT DEVELOPMENT:
Our ECS Functional Aerodynamic Rear Diffuser Kit was designed, engineered, tested and quality inspected by our Research and Development team in our Wadsworth, Ohio facility. 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 modeling, rapid prototyping utilizing our in-house 3D printer, and rigorous long term product testing.
INSTALLATION AND SUPPORT:
Need installation tips? We put together a full installation tutorial from start to finish in detail! See our Installation PDF under the INSTALLATION Tab for more information.
If used with a non ECS exhaust, your existing exhaust tips must be removed and the tail pipes must be aligned with diffuser turndown (Turndown tips & brackets are included in this kit)
- 5GM807417
This Part Fits the Following Vehicles
| Make | Model | Submodel | Engine | Special Fitment Notes |
|---|---|---|---|---|
| Volkswagen | Golf VII | Hatchback | 2.0T Gen3 | Use vehicle selector to confirm fitment |
Kit Contents
| Description | Brand | Qty | Lifetime | |
|---|---|---|---|---|
| Bolt - priced each |
|
2 | YES | |
| 14" Stainless Steel Locking Zip Tie - Priced Each |
|
4 | YES | |
| Universal Exhaust Wrap - 2" X 50ft |
|
1 | YES | |
| Zinc Yellow Plated Steel Rivet Nut For Plastics, M6 X 1 Mm Thread, For 0.5-7.10mm Material Thickness |
|
4 | YES | |
| Turndown Exhaust Tips - Pair - Brushed Satin |
|
1 | YES | |
| Aero Diffuser - Upper Section - Gloss Black |
|
1 | YES | |
| Aero Diffuser - Lower Assembly - Gloss Black |
|
1 | YES | |
| Aero Diffuser Mounting Bracket Kit |
|
1 | YES | |
| Turndown Brackets |
|
1 | YES |
Installation
This Product Is Covered By Our Lifetime Replacement Program
Products protected by our Lifetime Replacement Program are covered for as long as you own the product, no need to worry about an expiration date. Purchase your products and enjoy some worry-free motoring, knowing we've got you covered.
If you have any questions, would like to learn more or are ready to place a replacement claim, click here!
Return and Exchanges
Need to set up a return? Click here to begin: Return Process
All you need is your order number and email address.
New/Unused Product Returns
ECS Tuning will accept returns for unused products within 90 days of the ship date for a refund to the original payment method used. The customer is responsible for the return shipping costs and fees. If selecting to use a prepaid shipping label, the shipping cost will be deducted from the total refunded amount. All new/unused products must be new, unused and must be in the original packaging, including labeling, manuals, hardware, etc. Special order parts are non-refundable.
In the event that we find an error on our website or on behalf of an ECS Tuning Representative, we will provide a return shipping label from the original delivery location.
Refused Packages
Any domestic orders that are returned to ECS Tuning as refused by receiver or non-deliverable will be subject to a return handling fee and will be processed as a return in compliance with our standard return policy, including a 15% restocking fee.
Any international orders that are refused at the time of delivery will be subject to carrier abandonment of the package, at which time the ordered products would be discarded by the carrier. The customer will not be refunded for the value of the order and the discarded products are no longer retrievable.
Return Process
ECS Tuning now offers an online returns solution! To get started, simply log into your ECS Tuning account, Click the "View Orders" button on the My Account home page and select the order that you wish to make a return on to begin. If you have any questions, feel free to reach out to our Customer Service Team for assistance!
Please note: Refunds will be processed to the original payment method used on the order or to an in store credit, respective to the type of return that is made as well as any pre-existing arrangements with an ECS Tuning Customer Service Representative. In the event that multiple forms of payment were used, we will refund the value to an in store credit. In the event that a return label is provided, these charges may be deducted from the total refund you receive.
Original shipping costs are non-refundable and the buyer is responsible for return shipping charges. ECS Tuning will not accept COD deliveries.
All in store credit balances will expire after one year from the original purchase date.
Shipping Policy
Free Shipping On Orders $49 & Up
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.
Lifetime Replacement
Want to know more about our Lifetime Replacement program?
Click here to learn more.
Why You Should Shop From ECS Tuning
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.
Cancellation Policy
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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Prop 65 Warning
Looking for the full kit?
Save an additional $100 when you add our Functional Aerodynamic Front Splitter!
