SKU: 42229352205

ECS Tuning MK7.5 GTI Functional Aerodynamic Rear Diffuser Kit

$393.75 $437.50
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Description

ECS Tuning MK7.5 GTI Functional Aerodynamic Rear Diffuser KitThe ECS Tuning MK7. 5 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

The ECS Tuning MK7.5 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 MK7.5 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)

  • 4 x of an exhaust bracket spacer (ES#2771643) may help align the exhaust in the diffuser

Cross Reference

  • 5G6807568AG041
  • 5G6807568A
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 42229352205

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4.7 ★★★★★
Based on 24 reviews
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Verified Purchase
Amazon Customer
Boise, US
★★★★★ 1
wrong size of metal components. incorrect items. non functioning
Color: Black, Size: 4 Panel-88''
The owner of this product sent me the incorrect pieces when I tried to install. It didn’t fit. The pieces were missing holes and once I connected the wrong pieces after knowing now they’re stuck and I can’t return them even though Amazon was kind enough to refund me. I just want to warn people this product is such a disappointment because it looks good. It’s good price, but you can’t even assemble the thing very disappointed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
F
foundbyXtopher
Carnegie, US
★★★★★ 4
Sturdy Folding Room Divider with Good Privacy Coverage and Modern Look
Color: Black, Size: 4 Panel-88''
I picked this room divider up to help separate space in a room without needing permanent walls, and overall it works very well for creating privacy while still looking clean and modern. The size is one of the biggest advantages. At 6 feet tall and roughly 88 inches wide, it creates a noticeable visual separation and works well for apartments, dorms, offices, studios, shared rooms, or content creation setups where you want to hide clutter or define different areas. The black fabric and frame design give it a simple modern appearance that blends easily into most spaces without looking overly decorative or outdated. It has a clean minimalist look that works especially well in offices, bedrooms, gaming rooms, or studio environments. Assembly was fairly straightforward overall. Once fully put together, the divider feels reasonably stable for normal indoor use. The folding panel design also makes it flexible enough to angle different ways depending on the room layout. The portability is another strong point. Since it folds down, it is much easier to move or reposition compared to permanent partitions or heavier wooden dividers. That makes it practical for temporary privacy setups or changing room layouts frequently. Privacy performance is solid visually. It blocks sightlines well enough for changing areas, workspaces, video backgrounds, or separating sections of a room. The fabric also softens the space slightly instead of feeling harsh or industrial. One thing worth noting is that while it provides visual privacy, it is not soundproof. It helps define space and reduce some openness, but conversations and noise will still pass through normally. The material quality feels decent for the price range. The frame is lightweight but functional, though I would still avoid rough handling or constant aggressive repositioning over time. Value for money is good considering the size, flexibility, and convenience. Similar room dividers can become expensive quickly, especially for taller multi-panel setups. Overall, this is best for anyone needing an affordable flexible way to create separation and privacy in shared or open spaces. It works especially well for apartments, dorms, offices, studios, remote work setups, or content creators wanting a cleaner background without permanent construction.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
R
RealDeal
Grantham, US
★★★★★ 5
Looks nice but it's not very stylish, works as intended, happy with purchase
Color: Black, Size: 4 Panel-88''
This 6 ft room divider is exactly what I needed and works great! It was very easy to set up and took only a few minutes to assemble. I was pleasantly surprised by how lightweight it is, and it folds up easily for storage when not in use. The fabric-style panels look nice and provide good privacy, and the included clips help keep everything neatly in place. It’s a simple but effective design that does what it’s supposed to do. Because it’s lightweight, it may need a bit of extra support depending on where you place it—I used small weights on the base, and that completely solved the stability issue. Overall, I’m very happy with this purchase. It’s practical, easy to use, and a great value for the price. I would definitely recommend it! Industrial
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Reviewed in the United States on May 22, 2026
L
LSch01
Phoenix, US
★★★★★ 3
Assembly is harder than it should be; you get what you paid for
Color: Black, Size: 4 Panel-88''
Review of SUNALLY Room Divider 6FT Folding Privacy Screens, 4 Panel Fabric Divider for Room Separation, 88" W Freestanding Portable Wall Dividers Screen for Home Dorm Studio Office, Black I hate when I have to leave products a not so good review... Assembly is harder than it should be, mainly because there shouldn't BE any assembly. I have ordered several room divider privacy screens over the last couple of years and not one of them needed any kind of assembly. With that aside, it STILL was a pain in the sphincter to assemble. One of the "legs" just sits on top of a foot plate - it's not screwed in to anything. It's kind of flimsy and the base plates don't have anything on them to not scuff up the floor. With all that said, though, it does stand up and will block out what I need to block out. At the less-than-$50 price-point, it's kind of what should be expected. If I had purchased this outright, I would have considered sending it back and getting a higher quality. But if you only have $50 to spare and don't mind assembling things, it could be good for you.
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Reviewed in the United States on April 28, 2026
O
Ocean
Port Orchard, US
★★★★★ 5
Great buy
Color: Black, Size: 4 Panel-88''
This room divider is exactly what I needed. When you have 2 kids sharing a room and don’t want to spend a lot of money to divide their space this is what you can use. Believe it or not they are much happier now. This came in a small box which scared me but once I was able to get this up I was very pleased. It was easy to put together. The fabric is pretty good quality, it’s stable and stands up fine. Good value and worth it to have peace and quiet in the house.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026

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