Rear Diffuser for MK7.5 GTI (2018-2021)
Rear Diffuser for MK7.5 GTI (2018-2021)
Part#:
SKU:RD-75GT-SL-2
Couldn't load pickup availability
Shipping summary
Shipping summary
In-stock parts ship within about 2 business days (Mon–Fri). UPS Ground delivery is usually 2 to 5 business days after shipping. Chassis-mounted splitters, carbon parts, wings and brake duct kits are built to order and take about 3 weeks to build before they ship. Choose a shipping option at checkout to see your estimated delivery date for your order. Full details are on our FAQ & Shipping page.
Returns
Returns
At a glance
Items not listed as non-returnable below can be returned within 30 days of delivery, including gauge pods and spoiler extensions. Side skirts, front lips, rear diffusers, chassis-mounted splitters, swan neck wings, cooling parts, gift cards and digital files cannot be returned. A 10% restocking fee, based on the order total, applies to shipped orders, except for defective or damaged items. To start a return, log in at account.cjmind.com. If an item is defective or damaged, we cover the return label and the restocking fee is waived.
Read the return & cancel order policy here.
Install Info
Install Info
Install sheets can be found on CJMinstall.com. We are in the process of digitizing all sheets. If you can't find the copy you need, please email us! support@cjmind.com
MADE IN THE USA. This product ships in 2-3 business days. Fits 2018, 2019, 2020, 2021 Gti.
This elegant and aggressive design brings the look of your vehicle to a whole new level. We build each kit from a UV resistant black textured .25" thick plastic that is durable, and easy to wash. Our diffuser kits are now equipped with interchangeable fin technology. Simply unbolt a fin from the baseplate and swap it out for a different style. If you ever get tired of the look, or damage a fin, spare fin packs are available for purchase here!
The spats do not fit with OEM Mud flaps. The center diffuser section can be installed without the side spats if you with to keep the OEM mud flaps. Installation of the diffuser and spats require drilling the bottom of the rear valance/bumper.
Included in the kit:
- 1 X Diffuser Baseplate
- 4 X Fins
- 2 X Side Spats
- Stainless Hardware
- Install Sheet
Revision History:
- September 2026 - Updated 9mm material
- March 2022 - Release
Looks great. Got multiple compliments already. Very easy to install. It was my first time doing anything like this to a car and it was super easy. Everything fits flush.
The item arrived quickly and the quality was excellent. Installation was simple and it makes the rear look so aggressive.
Great quality and fitment. Top notch instructions on website. Didn’t install spacers for personal preference. Love the aggressive look!
Quality products, materials are top notch easy to install and great YouTube tutorials for thier installation.
Thiswas the last piece to finish the full CJM aero kit for my mk7.5 golf R. As always, the shipping was fast and price was fair. Chris has some of the best customer support in the game. 10/10 product for fit and finish!
Easy instal and not expensive.
From Chris's excellent and fast customer service to the diffuser itself, I could not be any more happier with my experience with CJM Industries.
Came packaged well and instructions that are easy to follow.
Fitment was pretty straight forward.
Definitely recommend CJM!
Thank you Kenny, we appretiate the support!
The diffuser was everything i expected and more super easy install directions were extremely simple and definitely recommend cjm products
Always the best quality!
Fast shipping and very high quality profucts, i will definitely be back!
It looks great, but it requires 2 people to install it. The amount of pressure required to get in place and clamp it is just not doable for 1 person.
Bought a lot of mods for my car and this is by far the best looking one. Very easy to assemble and relatively easy to fit (providing you have a little bit of knowledge) had an issue when the package arrived as it had none of the bolts needed in the box, however contacted the supplier and they were incredibly apologetic and had them to me in no time at all. Highly recommend these for all your car mods
Best diffuser for 2022+ GLI. I had another brand’s diffuser and switched to this one. Install was very easy, however there was one hole on my left spat that did not have the countersunk hole drilled. No problem; it was one of the middle bolts and it holds just fine without.
The diffuser with the side spats are beautiful! They flow really well with the side skirts and front splitter! I get more compliments than I would of thought. I'm very happy with the whole kit.
Easy install if you have the tools. Definitely easier with an extra set of hands. Good fitment for the price
With an easy install and a great fit it's an impressive product
(redacted)
Correct, this is not a full diffuser replacement, it bolt onto the OEM valance as shown in the pictures. If you have visible bolts, the diffuser was not installed correctly. We asked you for pictures of the issue so we could help identify your problem, and you said 'its not worth your time'. Instead you asked for a set of window diffusers for free instead of a refund. We don't give in to extorsion.
The mk8 diffuser adds a wonderful OEM + look without being over the top. Built very well and bolts/screws are of good quality. I had a shop do the install and it looks awesome!!
Pls do a tutorial on how to install, there are no vids on an install for this type of diffuser
instructions a little confusing but pretty simple install without them
Recently I ordered the CJM Industries MK7 Rear Diffuser. This is a high quality Diffuser, very well made and easy to install. I dd not use the side spats. I like how the fins are screwed in making them secure and looking good. Thanks
Great fitment, easy to install & relatively speaking a quality product for the price (compared to market)
Diffuser really brings a nice sharp look to the rear. Amazing product. Read splats can be tricky to get on
Super easy install & great fitment. Instructions with pictures are also very helpful. Highly recommended.
Very easy to install and looks awesome. Definitely made my golf R look so much better
Very easy to install and looks awesome. Definitely made my golf R look so much better