GLOSS BLACK REAR DIFFUSER LIP VALANCE F1 LED SPOILER FOR BMW 3 SERIES G20 G21. All Our Items Are High Quality. NEW GLOSS BLACK REAR DIFFUSER 3 PIECE FOR BMW 3 SERIES G20 G21 2018 2021. 1 X 3 PIECE REAR DIFFUSER PLEASE SEE PICTURES OF THE DIFFUSER INSTALLED ON CUSTOMER VEHICLE (Instructions are not provided). PLEASE SEEK PROFESSIONAL INSTALLATION ONLY, STRICTLY NOT NORMAL MECHANIC OR DIY INSTALLATION. M SPORT REAR BUMPER ONLY! WILL NOT FIT STANDARD REAR BUMPERS. Constructed from PP PLASTIC material Comes in Gloss Black Finish Rear diffuser must be installed by professional experienced bodyshop and not DIY installation. Bodykit installers have the knowledge and tools for the correct preparation and installation. HZ Dynamics Ltd was established in 2017 and have grown rapidly to become a major leader in vehicle aerodynamics and design. We manufacture carbon fiber, polyurethane, abs plastic and fiberglass products as well as sourcing direct from other manufacturers and therefore enables us to provide the best and most desirable styling products. All our products can be collected if required from our 4,000 sq ft warehouse situated in Loughborough, Leicestershire. Give us a shot for your next styling parts order and let us know what you think. We offer 100% satisfaction guarantee and will be very happy to honor if your are not completely satisfied. Thank you and do visit us again……. We always require a contact telephone number, preferably a mobile number to pass onto the courier company. Please ensure you return the goods via track and trace service and fully insured to the correct value of the item your sending back. Inspect all packages immediately in the presence of the courier. Installation of Bodykits and Lip Kits. All aerodynamics are manufactured with fiberglass unless otherwise noted. Due to the material used in production, some parts may NOT be a direct bolt-on. Parts may require prepping and sanding. ALL parts must be TEST FITTED before painting to make sure you have the correct part.