Tesla Model Y Rear Diffuser

Tesla Model Y Rear Diffuser

December 10, 2021 Off By Bruno Maiorana

Disclosure: This is a professional review blog. Bear in mind that some of the links in this post are affiliate links and if you go through them to make a purchase I will earn a commission. Keep in mind that I link these companies and their products because of their quality and not because of the commission I receive from your purchases. All of the products are tested thoroughly and high grades are received only by the best ones. I am an independent blogger and the reviews are done based on my own opinions.

Even though the Tesla Model Y is a sports utility vehicle (SUV), Tesla has paid special attention to this vehicle’s aerodynamics to get the most efficiency out of this fully electric model. This can be seen by taking a look at the Tesla Model Y’s drag coefficient. Where the average sedan has a drag coefficient of 0.25 – 0.30 Cd, and the average SUV has a drag coefficient between 0.35 and 0.45 Cd, the Tesla Model Y’s Cd of 0.25 Cd is fantastic.

Despite this, you can always do more to improve your vehicle’s aerodynamics. One such way is to install a rear diffuser on your Tesla Model Y such as the S Sizver Rear Diffuser. Through things like the Venturi effect, this customization allows downforce to be increased and drag decreased. The following will go over everything there is to know about the S Sizver Rear Diffuser so you can decide if it is the right Tesla rear bumper diffuser for you:


With this rear bumper diffuser, you do not have to worry about if it will fit onto the rear of your Tesla Model Y. Being a universal product, S Sizver Rear Diffuser is compatible with nearly every vehicle on the market today.

Of course, even though it is classified as being universal, it is wise to do a test fit before installing this rear diffuser. Since it is one size fits all, this diffuser was designed so that you can cut it to make it the size you would like and can drill holes where it is needed. Because this can become complicated for someone who is not sure if this diffuser needs to be customized to fit, it is recommended to have this rear diffuser installed professionally unless you have automotive experience.

Click here to check the price S Sizver’s Rear Diffuser on Amazon.



Car ownership can be unexpectedly expensive, even more so with a vehicle such as a Tesla Model Y. Luckily, not all endeavors related to Tesla ownership have to be expensive. Just like how you can get one of the best front and rear dash cams for under $100, you can get a rear diffuser for a very reasonable price.

S Sizver Rear Diffuser is affordable and can be purchased on just about any budget. Given this product is sold at such a reduced price, its quality is surprising. If you want to spice up your Tesla Model Y while providing some additional protection and aerodynamics without breaking the bank, this is the diffuser for you.

Click here to check the price S Sizver’s Rear Diffuser on Amazon.



Even though this rear bumper diffuser is universal, there are still options when it comes to which size you want. Depending on your personal tastes and what kind of appearance you are going for, you can choose between two sizes. S Sizver Rear Diffuser comes in both 23” by 6” and 34” by 6”.


Tesla Model Ys have many amazing features, from helping to reduce greenhouse gas emissions to industry leading technology. This being said, many people feel that Tesla Model Ys blend in with one another. If you want to stand out from all of the other Tesla Model Ys on the road, getting a rear bumper diffuser might be the way to go.

Just like how getting a Model Y wheel cap kit can subtly change your Tesla’s appearance, getting the S Sizver Rear Diffuser is one way to make your Tesla Model Y more aggressive and sporty looking. With a carbon fiber pattern and shark fin style, this decorative accessory will help you stand out in the crowd.

Click here to check the price S Sizver’s Rear Diffuser on Amazon.



There is not much use for a rear bumper diffuser if it is not durable since it is in such close proximity to the asphalt. Under S Sizver Rear Diffuser’s carbon fiber patterned exterior is incredibly strong, automotive grade acrylonitrile butadiene styrene plastic, also known as ABS plastic. This type of plastic is hard, strong, stable, and is resistant to impact, heat, chemicals, and abrasions, making it perfect for this application.

Also important is that the rear diffuser is firmly attached to your vehicle. This rear bumper diffuser can be attached with 3M adhesive tape, screws, or both. Although 3M adhesive tape is wonderful and adheres products such as S Sizver Rear Diffusers to your vehicle without problem, using hardware is preferable for some people. If you plan to ever resell your Tesla Model Y or may one day want to remove your diffuser, it is advised to only use the 3M adhesive tape so that you can remove the diffuser without damage to your paint or bumper.

Click here to check the price S Sizver’s Rear Diffuser on Amazon.



This rear diffuser is more than just eye-catching – it also provides some protection to your bumpers paint.  Similar to how you would get one of the best sunshades for Tesla Y with UV protection so that the interior of your vehicle doesn’t fade, it makes sense to protect your bumper’s paint if you are able to.

Even if you are incredibly careful, there is always a chance that you will miss a pothole on an unfamiliar street at nighttime. Similarly, if you back into a steep driveway you risk scraping your paint. With S Sizver Rear Diffuser installed, a barrier is created between your bumper and the street, preventing your paint from getting scratched up. This is good news, since it costs very little to replace the diffuser but a lot to get your paint repaired.

Click here to check the price S Sizver’s Rear Diffuser on Amazon.


Customer Service

S Sizver has both an outstanding sales team and a helpful and knowledgeable team of technical staff. Since you can not return the rear diffuser after it has been used, cut, or drilled into, the staff encourages test fits and for you to contact them to ask any questions you may have. Simply click “ask a question” on Amazon if you are unsure about if this product is right for you and they will get back to you.

This California based company has spent the last decade climbing the ladder to become one of the industry’s leading distributors and manufacturers of automotive accessories and aftermarket parts. Through extensive quality control and developing products that are applicable to nearly all vehicles, old and new, S Sizver has found itself a trusted and valued company. 

Click here to check the price S Sizver’s Rear Diffuser on Amazon.