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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  • Porsche 718 Cayman GTS 4.0 & Boxster GTS 4.0 Carbon Fibre Rear Diffuser by Akrapovic - AUTOID® - Rear Diffusers - Akrapovic

    Porsche 718 Cayman GTS 4.0 & Boxster GTS 4.0 Carbon Fibre Rear Diffuser by Akrapovic

    Porsche 718 Cayman GTS 4.0 & Boxster GTS 4.0 Carbon Fibre Rear Diffuser by Akrapovic
    7,403.89 NIS
  • Porsche 718 Cayman GT4 RS & Spyder RS Carbon Fibre Rear Diffuser by Akrapovic - AUTOID® - Rear Diffusers - Akrapovic

    Porsche 718 Cayman GT4 RS & Spyder RS Carbon Fibre Rear Diffuser by Akrapovic

    Porsche 718 Cayman GT4 RS & Spyder RS Carbon Fibre Rear Diffuser by Akrapovic
    13,056.02 NIS
  • Porsche 718 Cayman GT4 & Spyder Carbon Fibre Rear Diffuser by Akrapovic - AUTOID® - Rear Diffusers - Akrapovic

    Porsche 718 Cayman GT4 & Spyder Carbon Fibre Rear Diffuser by Akrapovic

    Porsche 718 Cayman GT4 & Spyder Carbon Fibre Rear Diffuser by Akrapovic
    8,090.84 NIS
  • BMW M8, M8 Competition, Gran Coupé F91 F92 F93 Rear Diffuser by Akrapovic - AUTOID® - Rear Diffusers - Akrapovic

    BMW M8, M8 Competition, Gran Coupé F91 F92 F93 Rear Diffuser by Akrapovic

    Pre-preg

    BMW M8, M8 Competition, Gran Coupé F91 F92 F93 Rear Diffuser by Akrapovic
    6,411.64 NIS
  • BMW M5 & M5 Competition F90 Rear Diffuser by Akrapovic - AUTOID® - Rear Diffusers - Akrapovic

    BMW M5 & M5 Competition F90 Rear Diffuser by Akrapovic

    Pre-preg

    BMW M5 & M5 Competition F90 Rear Diffuser by Akrapovic
    5,304.84 NIS
  • BMW M3 & M4 G80 G81 G82 G83 Rear Diffuser by Akrapovic - AUTOID® - Rear Diffusers - Akrapovic

    BMW M3 & M4 G80 G81 G82 G83 Rear Diffuser by Akrapovic

    BMW M3 & M4 G80 G81 G82 G83 Rear Diffuser by Akrapovic
    6,392.53 NIS
  • BMW M3 & M4 G80 G81 G82 G83 Black Rear Diffuser by Akrapovic - AUTOID® - Rear Diffusers - Akrapovic

    BMW M3 & M4 G80 G81 G82 G83 Black Rear Diffuser by Akrapovic

    BMW M3 & M4 G80 G81 G82 G83 Black Rear Diffuser by Akrapovic
    7,942.02 NIS
  • BMW M3 & M4 F80 F82 F83 Rear Diffuser by Akrapovic - AUTOID® - Rear Diffusers - Akrapovic

    BMW M3 & M4 F80 F82 F83 Rear Diffuser by Akrapovic

    Pre-preg

    BMW M3 & M4 F80 F82 F83 Rear Diffuser by Akrapovic
    5,304.84 NIS
  • BMW M2, Competition, CS F87 Rear Diffuser by Akrapovic - AUTOID® - Rear Diffusers - Akrapovic

    BMW M2, Competition, CS F87 Rear Diffuser by Akrapovic

    Pre-preg

    BMW M2, Competition, CS F87 Rear Diffuser by Akrapovic
    5,411.72 NIS
  • BMW M2 G87 Rear Diffuser by Akrapovic - AUTOID® - Rear Diffusers - Akrapovic

    BMW M2 G87 Rear Diffuser by Akrapovic

    Pre-preg

    BMW M2 G87 Rear Diffuser by Akrapovic
    6,003.27 NIS
  • BMW M2 G87 Fibre Rear Diffuser by Akrapovic - AUTOID® - Rear Diffusers - Akrapovic

    BMW M2 G87 Fibre Rear Diffuser by Akrapovic

    Pre-preg

    BMW M2 G87 Fibre Rear Diffuser by Akrapovic
    5,675.04 NIS
  • BMW M240i & 230i M Sport G42 Carbon Fibre Rear Diffuser Set by ADRO - AUTOID® - Rear Diffusers - Adro

    BMW M240i & 230i M Sport G42 Carbon Fibre Rear Diffuser Set by ADRO

    BMW M240i & 230i M Sport G42 Carbon Fibre Rear Diffuser Set by ADRO
    4,642.20 NIS
    In stock
  • Tesla Model 3 Highland Carbon Fiber Rear Diffuser by Adro - AUTOID® - Rear Diffusers - Adro

    Tesla Model 3 Highland Carbon Fiber Rear Diffuser by Adro

    Tesla Model 3 Highland Carbon Fiber Rear Diffuser by Adro
    4,783.44 NIS
  • BMW G87 M2 VRS Aero Rear Diffuser with Underfloor Panel by Vorsteiner - AUTOID® - Rear Diffusers - Vorsteiner

    BMW G87 M2 VRS Aero Rear Diffuser with Underfloor Panel by Vorsteiner

    BMW G87 M2 VRS Aero Rear Diffuser with Underfloor Panel by Vorsteiner
    10,227.44 NIS
  • BMW F90 M5 VRS Aero Rear Diffuser by Vorsteiner - AUTOID® - Rear Diffusers - Vorsteiner

    BMW F90 M5 VRS Aero Rear Diffuser by Vorsteiner

    Pre-preg

    BMW F90 M5 VRS Aero Rear Diffuser by Vorsteiner
    8,328.07 NIS
  • Lamborghini URUS Rampante Edizione Aero Rear Diffuser - AUTOID® - Rear Diffusers - Vorsteiner

    Lamborghini URUS Rampante Edizione Aero Rear Diffuser

    Pre-preg

    Lamborghini URUS Rampante Edizione Aero Rear Diffuser
    36,714.42 NIS
  • McLaren 720S Silverstone Edition Aero Rear Diffuser by Vorsteiner - AUTOID® - Rear Diffusers - Vorsteiner

    McLaren 720S Silverstone Edition Aero Rear Diffuser by Vorsteiner

    Pre-preg

    McLaren 720S Silverstone Edition Aero Rear Diffuser by Vorsteiner
    45,898.26 NIS
  • Tesla Model 3 Volta Aero Rear Diffuser by Vorsteiner - AUTOID® - Rear Diffusers - Vorsteiner

    Tesla Model 3 Volta Aero Rear Diffuser by Vorsteiner

    Pre-preg

    Tesla Model 3 Volta Aero Rear Diffuser by Vorsteiner
    4,170.29 NIS
  • BMW G8X M3 Carbon Fiber Rear Diffuser by Vorsteiner - AUTOID® - Rear Diffusers - Vorsteiner

    BMW G8X M3 Carbon Fiber Rear Diffuser by Vorsteiner

    Pre-preg

    BMW G8X M3 Carbon Fiber Rear Diffuser by Vorsteiner
    13,754.87 NIS
  • BMW F80 M3 | F82/F83 M4 VRS GTS-V Aero Rear Diffuser by Vorsteiner - AUTOID® - Rear Diffusers - Vorsteiner

    BMW F80 M3 | F82/F83 M4 VRS GTS-V Aero Rear Diffuser by Vorsteiner

    Pre-preg

    BMW F80 M3 | F82/F83 M4 VRS GTS-V Aero Rear Diffuser by Vorsteiner
    8,328.07 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