Rear Diffusers

Enhance the rear-end aerodynamics and styling of your vehicle with AUTOID’s rear diffusers, engineered for a perfect blend of performance and visual impact. From subtle OEM+ designs to aggressive carbon fibre options, each diffuser is crafted to complement your car’s lines while improving airflow management.

Built with high-quality materials and precision fitment, our rear diffusers deliver durability, long-term finish quality, and seamless integration with existing bumpers and exhaust setups. Ideal for enthusiasts refining both daily drivability and track-inspired aesthetics, these diffusers provide a clean, purposeful upgrade.

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194 products

BMW M3 E92 Carbon Fibre Rear Diffuser by Adro - AUTOID - Rear Diffusers - AdroBMW M3 E92 Carbon Fibre Rear Diffuser by Adro - AUTOID - Rear Diffusers - Adro
In Stock
Carbon Fibre Competition Rear Diffuser Set for BMW 4 Series (2020+, G22 G23) - AUTOID - Rear Diffusers - EssentialsCarbon Fibre Competition Rear Diffuser Set for BMW 4 Series (2020+, G22 G23) - AUTOID - Rear Diffusers - Essentials
Automotive Passion Audi RS3 8Y Pre-Preg Carbon Fibre Rear Diffuser by AP (2020-2024)  Rear Diffusers  AUTOID®  Automotive Passion Audi RS3 8Y Pre-Preg Carbon Fibre Rear Diffuser by AP (2020-2024)  Rear Diffusers  AUTOID®
5.0
Rated 5.0 out of 5 stars
5.0 Stars (1 Review)
BMW M2 G87 Pre - Preg Carbon Fibre Rear Diffuser by Adro (2023+) - AUTOID - Rear Diffusers - AdroBMW M2 G87 Pre - Preg Carbon Fibre Rear Diffuser by Adro (2023+) - AUTOID - Rear Diffusers - Adro
M Performance Rear Diffuser for BMW M235i & M240i (2014 - 2020, F22 F23) - AUTOID - Rear Diffusers - BMW M PerformanceM Performance Rear Diffuser for BMW M235i & M240i (2014 - 2020, F22 F23) - AUTOID - Rear Diffusers - BMW M Performance
BMW M2 G87 Carbon Fibre Rear Diffuser by Alpha - N (2023+) - AUTOID - Rear Diffusers - Alpha - NBMW M2 G87 Carbon Fibre Rear Diffuser by Alpha - N (2023+) - AUTOID - Rear Diffusers - Alpha - N
BMW 1 Series Dual Exit & M135i F40 Pre - Preg Carbon Fibre Rear Diffuser (2019+) - AUTOID - Rear Diffusers - CT DesignBMW 1 Series Dual Exit & M135i F40 Pre - Preg Carbon Fibre Rear Diffuser (2019+) - AUTOID - Rear Diffusers - CT Design
5.0
Rated 5.0 out of 5 stars
5.0 Stars (1 Review)
BMW 220i, 230i & M240i Genuine M Performance Carbon Fibre Rear Diffuser (2021+, G42) - AUTOID - Rear Diffusers - BMW M PerformanceBMW 220i, 230i & M240i Genuine M Performance Carbon Fibre Rear Diffuser (2021+, G42) - AUTOID - Rear Diffusers - BMW M Performance
Carbon Fibre Rear Diffuser for Audi RS3 Saloon (2017 - 2020, 8V LCI) - AUTOID - Rear Diffusers - EssentialsCarbon Fibre Rear Diffuser for Audi RS3 Saloon (2017 - 2020, 8V LCI) - AUTOID - Rear Diffusers - Essentials
Gloss Black Competition Rear Diffuser Set for BMW X7 (2018+, G07) - AUTOID - Rear Diffusers - EssentialsGloss Black Competition Rear Diffuser Set for BMW X7 (2018+, G07) - AUTOID - Rear Diffusers - Essentials
Gloss Black Competition Rear Diffuser Set for BMW X5 (2018+, G05) - AUTOID - Rear Diffusers - EssentialsGloss Black Competition Rear Diffuser Set for BMW X5 (2018+, G05) - AUTOID - Rear Diffusers - Essentials
3DDesign Carbon Fibre Rear Diffuser (Type 2) for BMW M2 & M2 Competition (2015 - 2021, F87) - AUTOID - Rear Diffusers - 3DDesign3DDesign Carbon Fibre Rear Diffuser (Type 2) for BMW M2 & M2 Competition (2015 - 2021, F87) - AUTOID - Rear Diffusers - 3DDesign
New Arrival
BMW M340i, 330i & 320i G20 G21 LCI EVO-1 Gloss Black Rear Diffuser by ZAERO (2022+)BMW M340i, 330i & 320i G20 G21 LCI EVO-1 Gloss Black Rear Diffuser by ZAERO (2022+)
LYTE BMW XM G09 Gloss Black Competition Rear Diffuser by LYTE (2022+)  Rear Diffusers  AUTOIDLYTE BMW XM G09 Gloss Black Competition Rear Diffuser by LYTE (2022+)  Rear Diffusers  AUTOID
BMW X5M LCI F95 Carbon Fibre Rear Diffuser by 3DDesign (2023+) - AUTOID - Rear Diffusers - 3DDesignBMW X5M LCI F95 Carbon Fibre Rear Diffuser by 3DDesign (2023+) - AUTOID - Rear Diffusers - 3DDesign
Hyundai i30 N Facelift EVO - 1 Carbon Fibre Rear Diffuser (2020+) - AUTOID - Rear Diffusers - CT DesignHyundai i30 N Facelift EVO - 1 Carbon Fibre Rear Diffuser (2020+) - AUTOID - Rear Diffusers - CT Design
Bundle Deal
Audi RS6 C8 Pre - Preg Carbon Fibre Full Body Kit (2019+) - AUTOID - Rear Diffusers - CT DesignAudi RS6 C8 Pre - Preg Carbon Fibre Full Body Kit (2019+) - AUTOID - Rear Diffusers - CT Design
Audi RSQ8 4M Pre - Preg Carbon Fibre Rear Diffuser (2019+) - AUTOID - Rear Diffusers - CT DesignAudi RSQ8 4M Pre - Preg Carbon Fibre Rear Diffuser (2019+) - AUTOID - Rear Diffusers - CT Design
Tesla Model Y Pre - Preg Carbon Fibre Rear Diffuser by Adro (2020+) - AUTOID - Rear Diffusers - AdroTesla Model Y Pre - Preg Carbon Fibre Rear Diffuser by Adro (2020+) - AUTOID - Rear Diffusers - Adro
5.0
Rated 5.0 out of 5 stars
5.0 Stars (1 Review)
Audi RSQ8 4M Carbon Fibre Rear Bumper Splitters by Urban (2019+) - AUTOID - Rear Diffusers - Urban AutomotiveAudi RSQ8 4M Carbon Fibre Rear Bumper Splitters by Urban (2019+) - AUTOID - Rear Diffusers - Urban Automotive
5.0
Rated 5.0 out of 5 stars
5.0 Stars (1 Review)
M Performance Rear Diffuser for BMW M5 (2017+, F90) - AUTOID - Rear Diffusers - BMW M PerformanceM Performance Rear Diffuser for BMW M5 (2017+, F90) - AUTOID - Rear Diffusers - BMW M Performance
Tesla Model S Plaid Facelift II Pre-Preg Carbon Fibre Rear Diffuser by Adro (2021+)Tesla Model S Plaid Facelift II Pre-Preg Carbon Fibre Rear Diffuser by Adro (2021+)
3DDesign BMW X5M LCI F95 Carbon Fibre Rear Lower Diffuser Pieces by 3DDesign (2023+)  Rear Diffusers  AUTOID®  BMW X5M LCI F95 Carbon Fibre Rear Diffuser by 3DDesign (2023+) - AUTOID - Rear Diffusers - 3DDesign

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Enhance the rear-end aerodynamics and styling of your vehicle with AUTOID’s rear diffusers, engineered for a perfect blend of performance and visual impact. From subtle OEM+ designs to aggressive carbon fibre options, each diffuser is crafted to complement your car’s lines while improving airflow management.

Built with high-quality materials and precision fitment, our rear diffusers deliver durability, long-term finish quality, and seamless integration with existing bumpers and exhaust setups. Ideal for enthusiasts refining both daily drivability and track-inspired aesthetics, these diffusers provide a clean, purposeful upgrade.

AUTOID rear diffusers pair perfectly with rear boot lids, spoilers, and exhaust tips, offering a cohesive rear-end styling solution for performance-focused builds.