CFD Tested YRC Rear Wing V2 & CJM V3 Chassis Mounted Splitter - MK7 GTI 2015-2017

All sales are final, no returns or refunds. This item does not qualify for free shipping. This product is assembled to order and ships 3-4 weeks after the order is placed.  Made in USA. 

We sell many of these components individually here:

• YRC wing only
• V3 Track Splitter
• Replacement Blade (fits V1 & V2 bracket kits)
• Other Replacement Parts
• Fender Vents

 

This kit has been designed so that each component can be replaced, including just half of the blade. Drive off track, bend an endplate or mangle a lower strake on one side? No problem, just swap on a replacement (available here).

Design & Development
The YRC & CJM Aero system has been developed over multiple months using CFD (computational fluid dynamics) simulations to maximize downforce, drag and longitudinal stability. YRC performed all of our simulations on a 1:1 MK7 GTI model to gather the most accurate data possible. 

If you research providers of aerodynamic parts, you may find that many provide only free-stream data for their airfoils, either because their wing was designed to be universal or it yields more impressive numbers when run under ideal conditions. The YRC wing kit has been developed specifically for the MK7/7.5 platform to address some of the unique challenges of adding an effective wing to a hatchback. Our end-mounted airfoil and oversized endplates ensure uninterrupted flow to the aerodynamic surfaces, increasing underwing suction, minimizing drag and improving the overall efficiency of the system.

To learn more about the steps in our CFD design, simulation and testing process, YRC has a great overview here.

To learn more about the joint design & development work CJM & YRC did for the MK7 aero kit specifically, check out some of our video content on the YRC YouTube page.

 

YRC Wing:

 

Designed to complement the lines of the MK7 Golf platform and add class-leading downforce to the rear of the vehicle, this modular wing can be run at angles of attack from 0 - 10 degrees (in 5 degree increments) allowing the flexibility to balance aero upgrades at the front or change your setup from track to track.

Made from laser cut .100/080 5052 plate & extruded 6061 aerospace aluminum, the main airfoil & dual secondary canards are both strong and lightweight (entire assembly weighs less than 17 lbs!) Wing kit comes complete with endplates, all necessary brackets, Neoprene damping material, slip washers & stainless button-head mounting hardware.

The airfoil is a highly efficient 55” extrusion with an 8.8” chord and deep cambered profile, offering a drag ratio of between 12.8:1 and 9.08:1 (depending on AOA.) See performance data chart in images below.

Mounting requires drilling of 8 holes in the factory hatch & spoiler to receive stainless M6 rivet nuts. The entire assembly can be removed from your vehicle in minutes with 10 screws.  

Each Order includes:

- Wing foil

- Wing uprights/endplates

- Mounting plates & hardware 

- Printed Install Sheet with pictures

- All parts powder coated satin textured black for corrosion resistance. 

 

Custom Options: (email support@cjmind.com to order)

Custom color powder coating on the wing: +$100 + 2 weeks

Special tools required for install (not included):

• 9mm drill bit
• rivet nut / nutsert tool 

 

CJM V3 Splitter:

 

Our results are shown in the table image. 100+ lbs of downforce @100mph. 300 lbs at 130mph.  

Please read these product details thoroughly for fitment and installation requirements. This can be installed in a driveway with basic tools. Please review the written  install sheet and tool list to understand what is involved in the process, or watch our install video. Professional install recommended if you are not comfortable removing the front crash bar. 

• Brackets & rods come in raw aluminum unless powder coating option is selected. Expect some visible imperfections in the material from the cutting and bending process on raw aluminum parts.
• This will not fit with any front mount/twin intercooler.
  
• If you are on air ride, do not air-out onto these brackets, they are not designed to support the weight of an entire vehicle. 
• Requires drilling two 11mm holes in the crash bar for install. 
• Trimming the factory splash guard under the bumper is required (not the bumper).
• Brackets are made of 5052 Aluminum, these mount to 6 points of the chassis/crash bar to hold a splitter blade of your choice. They are height adjustable in 12mm increments.

 

Each Order includes:

• Top driver & passenger side bracket
• bottom brackets with pre-installed hex shank rivnuts for the lip/blade
• Center support brace with pre-installed hex shank rivnuts for the lip/blade
• Flange head bolts and nylock hardware for adjustable height settings
• Flange head bolts and nylock hardware to mount to the Chassis. 
• Countersunk hardware to attach a blade to brackets (3/8" or thinner blade)
• 2 piece blade - 9mm thick -  black textured UV resistant plastic with a radiused edge and pre drilled countersunk holes and an air dam that contours to the lower edge of the bumper.
• Side support rods - Aluminum rods, stainless hardware. \
• Front cable supports, and mounting brackets
• 4 piece endplate kit
• Strakes for the bottom of the blade
• Rear angle brace, for the rear edge of the blade (the most important edge of a splitter!)
• Tire spat kit
• Template to mount front cable supports
• Printed Install Sheet with pictures 

Add on options (not included):

• Drill bit - 11mm step bit & 4mm pilot bit
• Powder coating 

 
Weights - 

Full assembly - 39lbs

Ships in a 24"x50"x6" box - 45lbs packed

  

 Custom Coating Options: (email support@cjmind.com to order)

 

Weights - 

Wing assembly - 17lbs

Splitter assembly - 39lbs (This weight is as close to the ground as it can get!)

Ships in 3 boxes. 

 

FAQ:

Whats the difference between splitter versions?

• V1 - Blade (no air dam) - DIY/intro kit
• V2 - Blade with integrated air dam - Shaped for street use
• V3 - CFD tested for optimum performance on a track car. Additions include:

 

Whats the difference between wing versions?

• V1 - No longer available
• V2 - Improved airfoil, and mounting brackets. 

 

Disclaimer - 

Off road use only, not intended to be used on public roads. This product is not DOT approved. This product may alter the handling of the vehicle. The buyer is responsible for all modifications made to your car. CJM Industries llc assumes no responsibility or liability as a result from altering your car with our products. This product may not comply with Federal, State, Province, and/or Local laws, ordinances, and regulations. Buyer takes all responsibility to conform to all applicable laws and regulations for road use, especially pertaining to safety.