Audi A4 rear diffusers

4 rear diffusers for the B9 Audi A4 (2.0T) from 3 brands. Rear diffusers and rear bumper trim.

Before you order

Diffusers are specific to the bumper type and to the exhaust tip layout. Confirm both.
Listings are read from the retailer's B9 A4 (2.0T, quattro) category. Confirm engine, drivetrain and model year on the retailer page before ordering.

Brands on this page: ECS (2), Doorbusters (1), Enthusiast Bundles (1).

Doorbusters · Part no. DO0RBUSTER11KT
Audi B9 A4 Pre-facelift Rear Diffuser & Trunk Spoiler
Add some aggressive styling to your Audi!
Retailer fitment note: Fits pre-facelift, S-line models (up to 2018), without integrated tips in the rear valance
Check price at ECS Tuning for Doorbusters Audi B9 A4 Pre-facelift Rear Diffuser & Trunk Spoiler (opens the retailer site)
ECS · Part no. 008480LA01
Audi B9 A4 S-Line Pre-Facelift Rear Diffuser - Gloss Black
Add some aggressive styling to your Audi!
Retailer fitment note: Fits pre-facelift, S-line models (up to 2018), without integrated tips in the rear valance
Check price at ECS Tuning for ECS Audi B9 A4 S-Line Pre-Facelift Rear Diffuser - Gloss Black (opens the retailer site)
ECS · Part no. 019193ECS01A
Carbon Fiber Rear Diffuser - Audi B9 A4
Hand-laid carbon fiber to upgrade your exterior styling
Retailer fitment note: Fits pre-facelift, S-line models (up to 2019), without integrated tips in the rear valance
Check price at ECS Tuning for ECS Carbon Fiber Rear Diffuser - Audi B9 A4 (opens the retailer site)
Enthusiast Bundles · Part no. 028801ECS01EB2KT
Audi B9 A4 Pre-facelift Rear Diffuser & Trunk Spoiler
Add some aggressive styling to your Audi!
Retailer fitment note: Fits pre-facelift, S-line models (up to 2018), without integrated tips in the rear valance
Check price at ECS Tuning for Enthusiast Bundles Audi B9 A4 Pre-facelift Rear Diffuser & Trunk Spoiler (opens the retailer site)