Please allow up to a 2 week lead time time before shipping

Please view the .pdf below for a in depth look at the performance and data of this product.

• [OVERVIEW OF PERFORMANCE / DATA] .pdf

Often Imitated, Never Duplicated.

Let us preface by boldly stating this is NOT a universal product, but rather handcrafted to fit the Volkswagen MK8 GTI accurately and specifically. Isn’t that such a refreshing statement? Gone are the days of “universal” parts that yield lackluster results. This product DOES NOT fit the Golf R, standard Golf TSI or TDI.

WHATS INCLUDED?

• Installation Guide
• 5052 Aluminum Multi-piece Rear Diffuser (main plane, forward flat floor)
• 5052 Aluminum Rear Brackets
• 5052 Aluminum Mid Brackets
• 5052 Aluminum Forward Brackets
• 6 High-Impact/Heat-Resistant Replaceable Strakes
• Stainless Steel Metric Hardware with 4 height adjustment combinations to work with most aftermarket exhausts 
• Loctite Thread lock

GOOD TO KNOWS!

• Fits Years 2022 (GTI)
• Factory rear lower control arm 'aero covers' must be removed
• CFD validated
• Increase MPG's
• Decrease Lift and Drag
• Direct Bolt-on with no modification necessary
• Pre-installed nuts on necessary brackets for painless installation
• CNC Precision machined main plane
• CNC Precision machined strakes
• CNC precision machined brackets
• CNC precision press brake bent planes and brackets
• Durable and replaceable strake design
• Beautiful and Durable Powder Coat finish

We Are Innovators
aerofabb® is proud to offer a fully functional Rear Diffuser for the MK8 GTI with an innovative, durable, and replaceable strake design.

Rear Diffuser Construction
The aerofabb® Competition Series Rear Diffuser main plane and forward flat floor are constructed from a light weight, precision machined 5052 Aluminum which is finished in lightly textured and durable matte black powder coat. 

No need to worry about bending or cracking Diffuser Strakes. Our easily replaceable/durable strake design is made from a high-impact/heat-resistant plastic. We look at this component as a “wear” item. This innovative design allows for load to be placed on the strakes if and when there is contact with the roads surface, without sacrificing durability. No need to replace an entire unit if it comes to the point of excessive “wear”. 

5052 Aluminum was the choice for our CNC machined/press brake bent brackets with four of them featuring pre-installed nuts for painless installation.

Stainless Steel Metric hardware is used throughout the kit to securely mount and fasten all components together.

Adjustability
Depending on your current exhaust set up, aerofabb® gives you height adjustability in order to accommodate most aftermarket exhausts.

Confirmed Golf GTI Exhaust Fitment

OEM

Real World Testing
A visual tuft test was used during the beginning stages of development in order to confirm our base design worked and air was evacuating as it should. We then made minor but necessary changes to strake size, length, and angle (especially side planes near the rear wheels) to prevent spill over into the main plane.

CFD Optimized Aerodynamics
Using ANSYS Fluent Software for CFD (Computational Fluid Dynamics) we were able to optimize our design and further validate its functionality.