NINTE Rear Diffuser Fits for 2014-2020 BMW F80 M3 F82/F83 M4 with M Sport Bumper, V Style ABS Carbon Fiber Lower Bumper Lip

Received the diffuser with the rest of my body kit. All the other pieces installed no problem from this vendor, the diffuser was not installing properly. Reached out to the vendor and they help me throughout the installation but at the end I was not able to install it due to a minor defect. They offer to fix the problem or return my money. Excellent customer support, very impressed with their attention to detail and willingness to help. But other body parts and accessories from this vendor. What recommend.

Easy install and comes with hardware. Only thing is the screws were too short. Had to find longer screws but overall good product for price. And it looks nice on the m4. Fitment is close to perfect just slightly off by two finger nails. Overall I would recommend this to anyone looking for a quick and easy upgrade. Also once you secure the bolts that sucker is not going anywhere

This product did not work with my car BUT THEY DID NOT HESITATE to take it back! Commendable customer service!

As others stated, you’ll need new hardware.Unfortunately even with new hardware, fitment is lackluster at best. No clips for top half of center diffuser so you have to “push it back in” after a drive. And side pieces have about a 1/4” gap from being flush.Good for someone who doesn’t care about fitment and is looking for a good 20 footer, but if you’re wanting something better than that I suggest looking other places

I have an 18’ M3C and this things didn’t even come close to the tabs on the bumper. Holes for side parts done Line up either, I returned it back to UPS store within 20 minutes of taking out of the box, don’t waste your time or money

Received the diffuser which was packaged well. However, during inspection of the three pieces I found that the center diffuser piece contained a small hole/crack.

The product looks great and was easy to install. Will be ordering the front splitter next!