Exterior Styling Accessories
Leverage our advanced manufacturing facility and robust supply chain to scale your brand. Whether it’s custom molding or your own private-label part designs, we provide flexible production capacities and rapid prototyping to keep you ahead of the competition.
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Competitive Price
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Tell us your vehicle and the part you need. We develop OEM/ODM molds in-house and can source other parts through vetted partner factories.
Send an InquirySend your vehicle, part list or drawing. Our team checks fitment and replies within one business day.
Buying Guide
The rear bumper finishes the look of a car from behind. Wholesale buyers usually compare the part type, the material and finish, and how it fits each vehicle.
Rear diffuser: a finned panel under the rear bumper that gives a motorsport look. It is the most popular rear bumper upgrade.
Rear bumper lip and corner splitters: smaller add-ons for the lower edge and corners, such as a LOCO-style rear lip for the Tesla Model Y.
Bumper guards: corner guards and steel guards protect the bumper on pickups and SUVs, like the guards for the BYD Shark 6.
Replacement rear bumper: aftermarket rear bumper covers and parts for collision repair, mainly for BYD and Denza models.
Most rear diffusers are made from ABS or PP. ABS gives crisp fins, while PP is tougher against knocks.
A real carbon fiber diffuser, like our Audi A6 C7 part, is lighter and premium.
Steel bumper guards add strength for work vehicles.
Model-specific diffusers follow the bumper and exhaust layout of one model, so check the model and year. Universal corner splitters fit many cars.
Check the exhaust layout: some diffusers have cut-outs for visible tips, and others are made for cars with hidden exhausts.
Specs
| Part | Where It Mounts | Typical Install | Examples in This Range |
|---|---|---|---|
| Rear diffuser | Lower rear bumper | Screws and clips | BYD Seal EV, Seal 07, Seal 05 and Sealion 7 diffusers, Audi A6 C7 diffuser |
| Rear bumper lip | Lower edge of the rear bumper | Tape and screws | Tesla Model Y 2025+ LOCO-style lip |
| Corner splitters and guards | Rear bumper corners | Tape or screws | Universal corner splitters, PP corner guards with screws |
| Steel bumper guards | Front or rear of pickups | Bolt-on | BYD Shark 6 manganese steel guards |
| Replacement bumper parts | Full rear end | Factory mounting points | BYD Seal, Dolphin, E2 and Denza replacement parts |
| Material | Weight | Strength | Finish Options | Best For |
|---|---|---|---|---|
| ABS | Low | Rigid, crisp fins | Gloss black, carbon pattern, unpainted | Model-specific rear diffusers |
| PP | Low | Tough against knocks | Textured black, paintable | Corner guards and replacement bumpers |
| Carbon fiber | Lowest | Very stiff | Real carbon weave, clear coat | Premium diffusers such as the Audi A6 C7 part |
| Manganese steel | High | Very strong | Powder-coated black | Bumper guards for pickups like the BYD Shark 6 |
Each product page lists the exact vehicle and model years. Send us your vehicle list if you need fitment confirmed for a mixed order.
Installation
Rear diffusers usually use the factory mounting points. This is a general overview; follow the instructions supplied with the product.
Why Yirox
Cut-outs and fins are matched to the factory exhaust of each listed model.
Plastic diffusers and lips, real carbon fiber parts and steel bumper guards in one range.
Upgrade diffusers alongside replacement rear bumper parts for repair shops.
Your logo, finish and packaging for rear-end programs. Low MOQ on selected items.
Wholesale and OEM
Diffusers have to fit around exhausts, tow hooks and sensors, so we check every new model on the car. Founded in 2010, Yirox has 10+ years in auto parts and its own injection molding factory of approximately 20,000 m² with around 180 staff, plus vetted partners for steel guards and replacement parts. We are IATF 16949 and ISO 9001 certified, with buyers in 40+ countries.
New diffusers and rear lips from your drawings or a sample, checked against the exhaust layout of each model.
Aftermarket rear bumper parts for BYD and Denza models to support collision repair channels.
Gloss black, carbon pattern or unpainted, matched to the front lip and side skirts on the same model.
Low MOQ on selected items. Lead time depends on the model, finish and quantity, and we confirm it with every quote.
FAQ
On race cars a diffuser helps manage airflow under the car. On most road cars a rear bumper diffuser is mainly a styling upgrade that makes the rear look lower and wider.
Model-specific diffusers are made for the factory exhaust layout of each model. Check the product photos and fitment list for exhaust cut-outs before ordering.
Yes. We supply replacement rear bumper parts for BYD and Denza models, for collision repair and replacement programs.
A rear bumper lip is a slim add-on along the lower edge of the rear bumper. It is a simple upgrade, such as our LOCO-style lip for the Tesla Model Y.
Front grilles, such as a Honda Civic Type R style grille and a BYD Dolphin mesh grille, are listed under Front Bumpers. Grille trims are also in Car Exterior Trim.
ABS gives crisp fins and is easy to paint. PP is more flexible and resists knocks. Carbon fiber is lighter and premium but costs more.
Most model-specific diffusers use the factory mounting points with clips and screws. Some need a few holes. Each product page lists the install method.
Yes. We support OEM and ODM projects, custom finishes and private-label packaging. Send us drawings or a sample to start.
Low MOQ on selected items. Tell us the models and finishes and we will confirm the MOQ for each diffuser.
Yes. Diffusers and rear bumper parts ship to 40+ countries in export cartons sized for large parts.
Keep Browsing
See the full Exterior Styling Accessories range, or browse Exterior Trim Accessories.
Tell us your vehicle model, year and the parts you need.
Yirox supports single-piece orders, wholesale, OEM/ODM and custom sourcing for any auto parts.
