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    Rear Diffusers

    PSM Dynamic Carbon Fiber Rear Diffuser for Porsche Taycan  PSM Dynamic Carbon Fiber Rear Diffuser for Porsche Taycan 
    PSM Dynamic Carbon Fiber Rear Diffuser for Porsche Taycan
    From $124,390.00
    Future Design Carbon Fiber Rear Diffuser for BMW 2-Series Gran Coupe F44 2020+  Future Design Carbon Fiber Rear Diffuser for BMW 2-Series Gran Coupe F44 2020+ 
    Future Design Carbon Fiber Rear Diffuser for BMW 2-Series Gran Coupe F44 2020+
    $36,086.00
    CMST Tesla Model Y Dry Carbon Fiber Rear Diffuser Ver. 5a  CMST Tesla Model Y Dry Carbon Fiber Rear Diffuser Ver. 5a 
    CMST Tesla Model Y Dry Carbon Fiber Rear Diffuser Ver. 5a
    From $37,360.00
    Future Design Blaze Carbon Fiber Rear Diffuser & Canards for Audi RS6 RS7 C8 2020+  Future Design Blaze Carbon Fiber Rear Diffuser & Canards for Audi RS6 RS7 C8 2020+ 
    Future Design Blaze Carbon Fiber Rear Diffuser & Canards for Audi RS6 RS7 C8 2020+
    From $56,040.00
    Karbel Carbon Pre-preg Carbon Fiber Rear Diffuser for BMW X4M/C F98 & X3M/C F97 LCI 2022+  Karbel Carbon Pre-preg Carbon Fiber Rear Diffuser for BMW X4M/C F98 & X3M/C F97 LCI 2022+ 
    Karbel Carbon Pre-preg Carbon Fiber Rear Diffuser for BMW X4M/C F98 & X3M/C F97 LCI 2022+
    From $38,421.00
    CMST Dry Carbon Fiber Rear Diffuser for Porsche Macan / Macan S / GTS 2018-2021  CMST Dry Carbon Fiber Rear Diffuser for Porsche Macan / Macan S / GTS 2018-2021 
    CMST Dry Carbon Fiber Rear Diffuser for Porsche Macan / Macan S / GTS 2018-2021
    From $38,209.00 $40,332.00
    Karbel Carbon Dry Carbon Fiber Rear Diffuser for Porsche 718 Cayman & Boxster  Karbel Carbon Dry Carbon Fiber Rear Diffuser for Porsche 718 Cayman & Boxster 
    Karbel Carbon Dry Carbon Fiber Rear Diffuser for Porsche 718 Cayman & Boxster
    From $37,954.00
    Karbel Carbon Dry Carbon Fiber Rear Diffuser for Porsche 911 991.2 GT3  Karbel Carbon Dry Carbon Fiber Rear Diffuser for Porsche 911 991.2 GT3 
    Karbel Carbon Dry Carbon Fiber Rear Diffuser for Porsche 911 991.2 GT3
    From $48,992.00
    Akrapovic Rear Carbon Fiber Diffuser (Gloss Black) for BMW M3 (G80, G81) 2022+  Akrapovic Rear Carbon Fiber Diffuser (Gloss Black) for BMW M3 (G80, G81) 2022+ 
    Akrapovic Rear Carbon Fiber Diffuser (Gloss Black) for BMW M3 (G80, G81) 2022+
    $70,049.00
    Karbel Carbon Dry Carbon Fiber Rear Diffuser For BMW 8 Series G16 840i 850i Gran Coupe 4 Door Sedan  Karbel Carbon Dry Carbon Fiber Rear Diffuser For BMW 8 Series G16 840i 850i Gran Coupe 4 Door Sedan 
    Karbel Carbon Dry Carbon Fiber Rear Diffuser For BMW 8 Series G16 840i 850i Gran Coupe 4 Door Sedan
    From $35,789.00
    Karbel Carbon Pre-preg Carbon Fiber Rear Diffuser for Tesla Model Y / Performance  Karbel Carbon Pre-preg Carbon Fiber Rear Diffuser for Tesla Model Y / Performance 
    Karbel Carbon Pre-preg Carbon Fiber Rear Diffuser for Tesla Model Y / Performance
    From $31,841.00
    Karbel Carbon Pre-preg Carbon Fiber Rear Diffuser & Canards for Tesla Model 3 / Performance  Karbel Carbon Pre-preg Carbon Fiber Rear Diffuser & Canards for Tesla Model 3 / Performance 
    Karbel Carbon Pre-preg Carbon Fiber Rear Diffuser & Canards for Tesla Model 3 / Performance
    From $29,463.00
    Karbel Carbon Dry Carbon Fiber Rear Diffuser For BMW 5 Series G30 G31 Facelift 530i 540i M550i 2020+  Karbel Carbon Dry Carbon Fiber Rear Diffuser For BMW 5 Series G30 G31 Facelift 530i 540i M550i 2020+ 
    Karbel Carbon Dry Carbon Fiber Rear Diffuser For BMW 5 Series G30 G31 Facelift 530i 540i M550i 2020+
    From $28,445.00
    Karbel Carbon Fiber Rear Diffuser & Rear Canards for BMW 4 Series G26 GranCoupe M440i 430i  Karbel Carbon Fiber Rear Diffuser & Rear Canards for BMW 4 Series G26 GranCoupe M440i 430i 
    Karbel Carbon Fiber Rear Diffuser & Rear Canards for BMW 4 Series G26 GranCoupe M440i 430i
    From $32,435.00
    Karbel Carbon Dry Carbon Fiber Rear Diffuser For BMW 4 Series G22 G23 430i M440i 2020+  Karbel Carbon Dry Carbon Fiber Rear Diffuser For BMW 4 Series G22 G23 430i M440i 2020+ 
    Karbel Carbon Dry Carbon Fiber Rear Diffuser For BMW 4 Series G22 G23 430i M440i 2020+
    From $32,435.00
    Karbel Carbon Dry Carbon Fiber Rear Diffuser for BMW 3 Series G20 2019+  Karbel Carbon Dry Carbon Fiber Rear Diffuser for BMW 3 Series G20 2019+ 
    Karbel Carbon Dry Carbon Fiber Rear Diffuser for BMW 3 Series G20 2019+
    From $22,926.00 $30,482.00
    Karbel Carbon Dry Carbon Fiber Rear Diffuser for BMW 2 Series F22 2014-2019 
    Karbel Carbon Dry Carbon Fiber Rear Diffuser for BMW 2 Series F22 2014-2019
    From $22,501.00
    Future Design Carbon Fiber Rear Diffuser for Porsche Cayenne Coupe 2019+  Future Design Carbon Fiber Rear Diffuser for Porsche Cayenne Coupe 2019+ 
    Future Design Carbon Fiber Rear Diffuser for Porsche Cayenne Coupe 2019+
    $45,129.00
    Karbel Carbon Dry Carbon Fiber Rear Diffuser & Side Extension For BMW M3 G80 2021+  Karbel Carbon Dry Carbon Fiber Rear Diffuser & Side Extension For BMW M3 G80 2021+ 
    Karbel Carbon Dry Carbon Fiber Rear Diffuser & Side Extension For BMW M3 G80 2021+
    From $38,421.00
    Karbel Dry Carbon Fiber Rear Diffuser For Audi RS5 B9 2017-2019  Karbel Dry Carbon Fiber Rear Diffuser For Audi RS5 B9 2017-2019 
    Karbel Dry Carbon Fiber Rear Diffuser For Audi RS5 B9 2017-2019
    From $30,482.00
    Karbel Carbon Dry Carbon Fiber Rear Diffuser for Audi RS3 2018-2020 B9  Karbel Carbon Dry Carbon Fiber Rear Diffuser for Audi RS3 2018-2020 B9 
    Karbel Carbon Dry Carbon Fiber Rear Diffuser for Audi RS3 2018-2020 B9
    From $23,350.00 $35,110.00
    TAKD CARBON Dry Carbon Fiber Diffuser for VW Golf GTI Mark8  TAKD CARBON Dry Carbon Fiber Diffuser for VW Golf GTI Mark8 
    TAKD CARBON Dry Carbon Fiber Diffuser for VW Golf GTI Mark8
    From $19,105.00
    Future Design Carbon Fiber Diffuser for W117  Future Design Carbon Fiber Diffuser for W117 
    Future Design Carbon Fiber Diffuser for W117
    $34,515.00
    Future Design Rear Bumper Diffuser for Mercedes-Benz CLA W117  Future Design Rear Bumper Diffuser for Mercedes-Benz CLA W117 
    Future Design Rear Bumper Diffuser for Mercedes-Benz CLA W117
    $13,289.00
    Future Design Rear Rear Diffuser with Exhaust Tips for Mercedes-Benz A-Class W177  Future Design Rear Rear Diffuser with Exhaust Tips for Mercedes-Benz A-Class W177 
    Future Design Rear Rear Diffuser with Exhaust Tips for Mercedes-Benz A-Class W177
    $25,473.00
    Future Design Rear Diffuser for Mercedes-Benz A-Class W177  Future Design Rear Diffuser for Mercedes-Benz A-Class W177 
    Future Design Rear Diffuser for Mercedes-Benz A-Class W177
    $20,166.00
    Future Design Carbon Fiber Rear Diffuser for Mercedes-Benz A-Class W177  Future Design Carbon Fiber Rear Diffuser for Mercedes-Benz A-Class W177 
    Future Design Carbon Fiber Rear Diffuser for Mercedes-Benz A-Class W177
    $36,086.00
    Future Design Carbon Fiber Rear Diffuser for Volkswagen Golf 8 GTI MK8  Future Design Carbon Fiber Rear Diffuser for Volkswagen Golf 8 GTI MK8 
    Future Design Carbon Fiber Rear Diffuser for Volkswagen Golf 8 GTI MK8
    $29,209.00
    Future Design Carbon Fiber Rear Diffuser & Canards - "Blaze kit" for Audi RS5 B9.5 2020+  Future Design Carbon Fiber Rear Diffuser & Canards - "Blaze kit" for Audi RS5 B9.5 2020+ 
    Future Design Carbon Fiber Rear Diffuser & Canards - "Blaze kit" for Audi RS5 B9.5 2020+
    From $45,851.00 $50,945.00
    Future Design Carbon Fiber Rear Diffuser for Porsche Taycan 2020+  Future Design Carbon Fiber Rear Diffuser for Porsche Taycan 2020+ 
    Future Design Carbon Fiber Rear Diffuser for Porsche Taycan 2020+
    $62,620.00
    Future Design Dry Carbon Fiber Rear Diffuser for Ferrari 488  Future Design Dry Carbon Fiber Rear Diffuser for Ferrari 488 
    Future Design Dry Carbon Fiber Rear Diffuser for Ferrari 488
    $212,270.00
    Future Design Carbon Fiber Rear Diffuser for BMW F40 1-Series  Future Design Carbon Fiber Rear Diffuser for BMW F40 1-Series 
    Future Design Carbon Fiber Rear Diffuser for BMW F40 1-Series
    $29,209.00
    Future Design Carbon Fiber Diffuser w/ Twin Exhaust Outlets for BMW 4-Series G22 Coupe  Future Design Carbon Fiber Diffuser w/ Twin Exhaust Outlets for BMW 4-Series G22 Coupe 
    Future Design Carbon Fiber Diffuser w/ Twin Exhaust Outlets for BMW 4-Series G22 Coupe
    $29,209.00
    Future Design Carbon Fiber Diffuser w/ Quad Exhaust Tips for BMW 4-Series G22 Coupe  Future Design Carbon Fiber Diffuser w/ Quad Exhaust Tips for BMW 4-Series G22 Coupe 
    Future Design Carbon Fiber Diffuser w/ Quad Exhaust Tips for BMW 4-Series G22 Coupe
    $29,209.00
    Future Design Carbon Fiber Rear Diffuser for BMW X4 G02 LCI  Future Design Carbon Fiber Rear Diffuser for BMW X4 G02 LCI 
    Future Design Carbon Fiber Rear Diffuser for BMW X4 G02 LCI
    $40,332.00
    Future Design V1 Carbon Fiber Rear Diffuser for BMW G80 M3 & G82 M4  Future Design V1 Carbon Fiber Rear Diffuser for BMW G80 M3 & G82 M4 
    Future Design V1 Carbon Fiber Rear Diffuser for BMW G80 M3 & G82 M4
    $36,086.00
    Future Design V2 Carbon Fiber Diffuser for BMW G80 M3 & G82 M4  Future Design V2 Carbon Fiber Diffuser for BMW G80 M3 & G82 M4 
    Future Design V2 Carbon Fiber Diffuser for BMW G80 M3 & G82 M4
    $52,006.00
    Top Secret R35 Rear Side Diffuser 
    Top Secret R35 Rear Side Diffuser
    $27,595.00
    Top Secret R35 Side Diffuser Ver.1  Top Secret R35 Side Diffuser Ver.1 
    Top Secret R35 Side Diffuser Ver.1
    $77,394.00
    Top Secret R35 Front Diffuser (For Previous Version)  Top Secret R35 Front Diffuser (For Previous Version) 
    Top Secret R35 Front Diffuser (For Previous Version)
    $86,819.00
    Top Secret R35 MY11 Front Under Diffuser  Top Secret R35 MY11 Front Under Diffuser 
    Top Secret R35 MY11 Front Under Diffuser
    From $68,903.00
    Top Secret R35 Side Diffuser Ver.2 & M17 Bracket  Top Secret R35 Side Diffuser Ver.2 & M17 Bracket 
    Top Secret R35 Side Diffuser Ver.2 & M17 Bracket
    From $70,686.00
    Top Secret R35 M17 Dry Carbon Rear Under Diffuser  Top Secret R35 M17 Dry Carbon Rear Under Diffuser 
    Top Secret R35 M17 Dry Carbon Rear Under Diffuser
    $153,598.00
    TAKD Carbon Dry Carbon Fiber Rear Diffuser for 2023+ BMW 3-Series G20  TAKD Carbon Dry Carbon Fiber Rear Diffuser for 2023+ BMW 3-Series G20 
    TAKD Carbon Dry Carbon Fiber Rear Diffuser for 2023+ BMW 3-Series G20
    From $25,473.00
    TAKD CARBON Carbon Fiber Rear Diffuser & Canards Ver.2 for Audi A4 S-Line & S4 2017-2019 B9  TAKD CARBON Carbon Fiber Rear Diffuser & Canards Ver.2 for Audi A4 S-Line & S4 2017-2019 B9 
    TAKD CARBON Carbon Fiber Rear Diffuser & Canards Ver.2 for Audi A4 S-Line & S4 2017-2019 B9
    From $31,331.00
    TAKD CARBON Carbon Fiber Rear Diffuser Ver.1 for Audi A4 S-Line & S4 2017-2019 B9  TAKD CARBON Carbon Fiber Rear Diffuser Ver.1 for Audi A4 S-Line & S4 2017-2019 B9 
    TAKD CARBON Carbon Fiber Rear Diffuser Ver.1 for Audi A4 S-Line & S4 2017-2019 B9
    From $23,987.00
    TAKD Carbon Dry Carbon Fiber Rear Diffuser for Audi RS3 2018-2020  TAKD Carbon Dry Carbon Fiber Rear Diffuser for Audi RS3 2018-2020 
    TAKD Carbon Dry Carbon Fiber Rear Diffuser for Audi RS3 2018-2020
    From $29,718.00
    TAKD Carbon Dry Carbon Fiber Rear Diffuser & Canards & exhaust cover for Porsche 718 Boxster / Cayman  TAKD Carbon Dry Carbon Fiber Rear Diffuser & Canards & exhaust cover for Porsche 718 Boxster / Cayman 
    TAKD Carbon Dry Carbon Fiber Rear Diffuser & Canards & exhaust cover for Porsche 718 Boxster / Cayman
    From $48,313.00

    Shop rear diffusers and aero undertrays at CarGym. Carbon and composite diffuser listings for sports and luxury platforms are gathered here — checkout supports all currencies and we ship worldwide.

    Verify chassis compatibility and finish on each product page. Need help matching a diffuser to your bumper or exhaust layout? Email sales@cargym.com.

    FAQ — Rear Diffusers

    How do I confirm diffuser fitment?

    Match your model year, chassis code, and bumper style. Exhaust cut-outs and parking-sensor holes differ by kit — send details to sales@cargym.com if unsure.

    Are these carbon fibre?

    Many listings are carbon or carbon-look composites; others are FRP or ABS. Read the product description for material and finish (gloss, matte, exposed weave).

    Do you ship diffusers worldwide?

    Yes. CarGym ships worldwide with multi-currency checkout. Large aero pieces may require special packaging — we confirm shipping before dispatch.

    Will a diffuser clear my exhaust tips?

    Clearance depends on tip diameter and tip-out position. Share photos of your rear bumper and tips with sales@cargym.com for a fit check.

    Can I buy a diffuser with a matching spoiler or lip?

    Often yes — many brands sell matching aero. Browse this hub plus our Spoilers collection, or ask us to bundle recommendations.

    How do I order or ask a question?

    Email sales@cargym.com with your chassis and preferred finish.