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Universal Shark Fin Rear Bumper Diffuser, PP Two-Piece or Four-Fin Set

Universal shark fin rear bumper diffuser made of PP, available as a two-piece splice lip or a four-piece fin set in carbon fibre pattern or matte black. Mounts under the rear bumper with screws and double-sided tape. Yirox supports wholesale and bulk orders.

  • Shark fin rear diffuser styling
  • Two-piece splice lip or four-fin set
  • Carbon fibre pattern or matte black
  • Screw and tape mounting

Product Overview

Universal Shark Fin Rear Bumper Diffuser

This universal rear bumper diffuser adds shark fin aero styling under the rear bumper. It is made of PP and comes as a full-width two-piece splice lip or a four-piece fin set, in carbon fibre pattern or matte black.

Product Features

Two-piece shark fin diffusers in carbon fibre pattern and matte black

Two Finishes for Any Build

Choose a glossy carbon fibre pattern or a matte black finish to match the bumper trim, badges or other exterior parts.

Joint section of the two-piece diffuser where the halves are screwed together

Two-Piece Splice Design

The full-width version comes in two halves that screw together at the centre joint. This keeps the package compact and makes the lip easier to handle and fit.

Four-piece shark fin sets in carbon fibre pattern and matte black

Four-Fin Set Option

Prefer individual fins? The four-piece set lets you space the fins to suit the width and shape of the rear bumper.

Underside of the shark fins showing pre-drilled mounting holes

Pre-Drilled Mounting Points

Each fin has pre-drilled holes for screws, and double-sided tape adds extra hold along the base for a secure fit under the bumper.

Key Features

  • Shark fin design for a sporty rear look
  • Durable PP construction
  • Two-piece splice lip or four-piece fin set
  • Carbon fibre pattern or matte black
  • Fits under most rear bumpers; mounts with screws and double-sided tape

Applications

Suitable for accessory retailers, tuning shops and body shops offering an easy rear styling upgrade for saloons, hatchbacks and SUVs.

Ordering

Available in single sets and wholesale and bulk quantities. Choose the version and finish when ordering.

Datasheet

Yirox SKUYX-UNI-002
Product typeShark fin rear bumper diffuser
FitmentUniversal, most rear bumpers
MaterialPP
VersionsTwo-piece splice lip; four-piece fin set
Finish optionsCarbon fibre pattern, matte black
InstallationScrews and double-sided tape
Package sizeTwo-piece: 50 × 18 × 8 cm; four-piece: 20 × 10 × 8 cm
Package weight1 kg
Order quantitySingle sets or wholesale/bulk

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About Yirox

Manufacturer of Universal Shark Fin Rear Bumper Diffuser, PP Two-Piece or Four-Fin Set

Yirox is an automotive accessories manufacturer based in Wuxi, China, with 10+ years of export experience across 6 global regions. We produce EV charging accessories, BYD and Tesla aftermarket parts, pickup truck accessories, off-road LED lighting, wheel balancing weights, and automotive abrasives —  manufactured in-house using die casting, CNC machining, injection molding, SMT lines, and dedicated PCBA and testing labs. Products are developed to CE, RoHS, FCC, E-mark, DOT, ISO 9001, IATF 16949, and EN12413 standards depending on category and target market.

Why Choose Yirox

Comprehensive auto parts service to save your budget and time

OEM and ODM development is supported from drawing or sample through to branded production, with trial orders starting from 10–20 pcs on selected products. Every shipment includes raw-material traceability, in-line inspection, and batch documentation. For products outside our own production scope, we coordinate directly with verified source factories — one contact, no middlemen. Whether you’re validating a new SKU or scaling an existing program, the process is the same: clear specs, documented quality, and export-ready delivery.

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