Rear Diffusers

Rear Diffusers - Carbon Fibre & Gloss Black Upgrades for All Performance Platforms

The rear diffuser is one of the most visually and aerodynamically significant upgrades available for any performance car. Positioned at the lowest point of the rear bumper, a well-designed diffuser manages the airflow beneath the car, reduces rear lift at speed and transforms the rear end aesthetic from factory-conservative to purposefully aggressive. At AUTOID, we supply a carefully curated range of rear diffusers for BMW, Volkswagen, Audi, Toyota and other performance platforms – in carbon fibre, gloss black ABS and polyurethane, across a price range that suits every build level.

Rear Diffusers

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  • BMW M5 G90 G99 Genuine M Performance Carbon Fibre Rear Diffuser Set (2024+) - AUTOID® - Rear Diffusers - BMW M Performance

    BMW M5 G90 G99 Genuine M Performance Carbon Fibre Rear Diffuser Set (2024+)

    Pre-preg

    BMW M5 G90 G99 Genuine M Performance Carbon Fibre Rear Diffuser Set (2024+)
    8,830.47 NIS
  • Honda Civic FL5 Type R Carbon Fibre Rear Diffuser by Adro - AUTOID® - Rear Diffusers - Adro

    Honda Civic FL5 Type R Carbon Fibre Rear Diffuser by Adro

    Honda Civic FL5 Type R Carbon Fibre Rear Diffuser by Adro
    5,650.23 NIS
  • BMW 1 Series F70 Genuine M Performance Carbon Fibre Rear Diffuser (2024+) - AUTOID® - Rear Diffusers - BMW M Performance

    BMW 1 Series F70 Genuine M Performance Carbon Fibre Rear Diffuser (2024+)

    BMW 1 Series F70 Genuine M Performance Carbon Fibre Rear Diffuser (2024+)
    3,954.10 NIS
  • BMW XM G09 Carbon Fibre Rear Diffuser by 3D Design - AUTOID® - Rear Diffusers - 3DDesign

    BMW XM G09 Carbon Fibre Rear Diffuser by 3D Design

    BMW XM G09 Carbon Fibre Rear Diffuser by 3D Design
    8,830.47 NIS
  • BMW X1 M Sport U11 Carbon Fibre Rear Diffuser by 3D Design (2022+) - AUTOID® - Rear Diffusers - 3DDesign

    BMW X1 M Sport U11 Carbon Fibre Rear Diffuser by 3D Design (2022+)

    BMW X1 M Sport U11 Carbon Fibre Rear Diffuser by 3D Design (2022+)
    8,123.74 NIS
  • Lotus Emira Pre-Preg Carbon Fibre Rear Diffuser - AUTOID® - Rear Diffusers - CT Design

    Lotus Emira Pre-Preg Carbon Fibre Rear Diffuser

    Lotus Emira Pre-Preg Carbon Fibre Rear Diffuser
    4,236.80 NIS
  • BMW M2 G87 Carbon Fibre Rear Diffuser by 3D Design (2023+) - AUTOID® - Rear Diffusers - 3DDesign

    BMW M2 G87 Carbon Fibre Rear Diffuser by 3D Design (2023+)

    BMW M2 G87 Carbon Fibre Rear Diffuser by 3D Design (2023+)
    5,897.57 NIS
  • Hyundai Veloster N Carbon Fibre Rear Diffuser by Adro (2019+) - AUTOID® - Rear Diffusers - Adro

    Hyundai Veloster N Carbon Fibre Rear Diffuser by Adro (2019+)

    Hyundai Veloster N Carbon Fibre Rear Diffuser by Adro (2019+)
    3,530.07 NIS
  • Kia Stinger Carbon Fibre Meister Rear Diffuser V3 by Adro (2018+) - AUTOID® - Rear Diffusers - Adro

    Kia Stinger Carbon Fibre Meister Rear Diffuser V3 by Adro (2018+)

    Kia Stinger Carbon Fibre Meister Rear Diffuser V3 by Adro (2018+)
    3,883.42 NIS
  • BMW X3 LCI G01 Carbon Fibre Rear Diffuser by 3D Design (2021+) - AUTOID® - Rear Diffusers - 3DDesign

    BMW X3 LCI G01 Carbon Fibre Rear Diffuser by 3D Design (2021+)

    BMW X3 LCI G01 Carbon Fibre Rear Diffuser by 3D Design (2021+)
    7,381.68 NIS
  • Porsche Taycan Turbo & Turbo S Carbon Fibre Decklid Rear Spoiler by Vorsteiner (2021+) - AUTOID® - Rear Diffusers - Vorsteiner

    Porsche Taycan Turbo & Turbo S Carbon Fibre Decklid Rear Spoiler by Vorsteiner (2021+)

    Porsche Taycan Turbo & Turbo S Carbon Fibre Decklid Rear Spoiler by Vorsteiner (2021+)
    4,766.84 NIS
  • Porsche Taycan Turbo & Turbo S Carbon Fibre Rear Diffuser by Vorsteiner (2021+) - AUTOID® - Rear Diffusers - Vorsteiner

    Porsche Taycan Turbo & Turbo S Carbon Fibre Rear Diffuser by Vorsteiner (2021+)

    Porsche Taycan Turbo & Turbo S Carbon Fibre Rear Diffuser by Vorsteiner (2021+)
    13,424.14 NIS
  • Tesla Model 3 Pre-Preg Carbon Fibre Rear Diffuser by Adro (2017+) - AUTOID® - Rear Diffusers - Adro

    Tesla Model 3 Pre-Preg Carbon Fibre Rear Diffuser by Adro (2017+)

    Tesla Model 3 Pre-Preg Carbon Fibre Rear Diffuser by Adro (2017+)
    7,770.39 NIS
  • Lamborghini Urus Carbon Fibre Rear Diffuser Assembly by Urban - AUTOID® - Rear Diffusers - Urban Automotive

    Lamborghini Urus Carbon Fibre Rear Diffuser Assembly by Urban

    Lamborghini Urus Carbon Fibre Rear Diffuser Assembly by Urban
    23,282.90 NIS
  • BMW 4 Series Gran Coupe G26 Pre-Preg Carbon Fibre Rear Diffuser Set by FORM (2021+) - AUTOID® - Rear Diffusers - FORM Industries

    BMW 4 Series Gran Coupe G26 Pre-Preg Carbon Fibre Rear Diffuser Set by FORM (2021+)

    BMW 4 Series Gran Coupe G26 Pre-Preg Carbon Fibre Rear Diffuser Set by FORM (2021+)
    5,049.50 NIS
  • BMW M4 G82 Carbon Fibre Rear Wing by 3D Design (2020+) - AUTOID® - Rear Diffusers - 3DDesign

    BMW M4 G82 Carbon Fibre Rear Wing by 3D Design (2020+)

    BMW M4 G82 Carbon Fibre Rear Wing by 3D Design (2020+)
    16,251.04 NIS
  • 3DDesign Carbon Fibre Rear Diffuser for BMW M3 G80 G81 & M4 G82 G83 (2020+) - AUTOID® - Rear Diffusers - 3DDesign

    3DDesign Carbon Fibre Rear Diffuser for BMW M3 G80 G81 & M4 G82 G83 (2020+)

    3DDesign Carbon Fibre Rear Diffuser for BMW M3 G80 G81 & M4 G82 G83 (2020+)
    10,773.94 NIS
  • Audi RS4 B9.5 Carbon Fibre Rear Bumper Splitters by Urban (2021+) - AUTOID® - Rear Diffusers - Urban Automotive

    Audi RS4 B9.5 Carbon Fibre Rear Bumper Splitters by Urban (2021+)

    Audi RS4 B9.5 Carbon Fibre Rear Bumper Splitters by Urban (2021+)
    3,477.07 NIS
  • BMW M3 G80 G81 Carbon Fibre VRS Aero Rear Diffuser by Vorsteiner (2020+) - AUTOID® - Rear Diffusers - Vorsteiner

    BMW M3 G80 G81 Carbon Fibre VRS Aero Rear Diffuser by Vorsteiner (2020+)

    BMW M3 G80 G81 Carbon Fibre VRS Aero Rear Diffuser by Vorsteiner (2020+)
    12,364.06 NIS
  • M Performance Carbon Fibre Rear Diffuser Set for BMW 4 Series Gran Coupe (2021+, G26) - AUTOID® - Rear Diffusers - BMW M Performance

    M Performance Carbon Fibre Rear Diffuser Set for BMW 4 Series Gran Coupe (2021+, G26)

    M Performance Carbon Fibre Rear Diffuser Set for BMW 4 Series Gran Coupe (2021+, G26)
    6,003.58 NIS

Frequently asked questions
Do rear diffusers actually improve aerodynamics or are they purely cosmetic?

A well-designed, vehicle-specific rear diffuser can produce measurable aerodynamic benefits by managing airflow under the car and reducing rear lift at higher speeds. Diffusers that have been CFD-tested (such as the ADRO X3M LCI diffuser in our range) produce quantified improvements in rear stability. Purely cosmetic diffusers with no proper underbody channel geometry deliver less aerodynamic benefit but still provide significant visual enhancement.
What material options are available for rear diffusers?

We offer rear diffusers in pre-preg carbon fibre (the highest specification - used on ADRO products), standard CFRP 2x2 weave carbon and high-quality ABS plastic in gloss black. Pre-preg is the lightest and most visually refined option; ABS gloss black provides an accessible, durable alternative at a lower price point.
Will a rear diffuser fit around my aftermarket exhaust?

This depends on the specific diffuser and exhaust tip size/position. Most vehicle-specific diffusers are designed around the OEM exhaust exit point. If you have an aftermarket exhaust with a different tip size, please contact us to confirm clearance before ordering.
How are rear diffusers installed?

Most diffusers in our range bolt directly onto existing mounting points on the rear bumper. No drilling, cutting or permanent modification is required. Installation typically takes 20–45 minutes with basic tools.

Rear Diffusers - Carbon Fibre & Gloss Black Upgrades for All Performance Platforms

The rear diffuser is one of the most visually and aerodynamically significant upgrades available for any performance car. Positioned at the lowest point of the rear bumper, a well-designed diffuser manages the airflow beneath the car, reduces rear lift at speed and transforms the rear end aesthetic from factory-conservative to purposefully aggressive. At AUTOID, we supply a carefully curated range of rear diffusers for BMW, Volkswagen, Audi, Toyota and other performance platforms – in carbon fibre, gloss black ABS and polyurethane, across a price range that suits every build level.

Key Benefits of a Rear Diffuser Upgrade:

  • Improved rear-end aerodynamics - reduces rear lift at higher speeds
  • Dramatic visual transformation of the rear bumper area
  • Carbon fibre options are lightweight, premium and UV-resistant
  • Direct OEM-mount fitment - no modification required
  • Compatible with standard exhaust systems and aftermarket exhaust tips