Audi S4
Shop Audi S4 aftermarket upgrades, from suspension, carbon fiber and FRP aero, wings, bumpers and other, to exhaust systems and custom-made aftermarket forged wheels
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FILTERS
![Eventuri Type B Carbon Intake System Replacement Filter [EVE-661-G2-FTR]](https://bulletproof-live.magepitstop.com/wp-content/uploads/2025/09/eventuri_replacement_air_filter_g2_5-450x450.jpg)
![Eventuri Black Carbon Intake System for B9 Audi S4 & S5 [EVE-B9S5-CF-INT]](https://bulletproof-live.magepitstop.com/wp-content/uploads/2025/09/Audi-B9-S4-S5-Intake-1-1-450x450.jpeg)
![Valvetronic Designs Valved Sport Exhaust System for B9 Audi S4 / S5 [AUD.B9.S4.VSES.BR.RC]](https://bulletproof-live.magepitstop.com/wp-content/uploads/2025/08/A7405504-450x450.jpeg)
![Valvetronic Designs Valved Sport Exhaust System for B8 & B8.5 Audi S4 / S5 [AUD.B8.S4.VSES.AG.RC/AUD.B8.S4.VSES.BR.RC]](https://bulletproof-live.magepitstop.com/wp-content/uploads/2025/08/A7404785-scaled-1-450x450.jpeg)
![VF Engineering Performance ECU Software for B9 Audi S4 / S5 and FY SQ5 [VFP.AUD.B9S.ST1]](https://bulletproof-live.magepitstop.com/wp-content/uploads/2025/02/MessagesImage_2673813381__1_d388ae2d-6558-4b43-805a-23fde77d00ec-450x450.webp)
![VF Engineering Competition Package for B9 Audi S4 / S5 and SQ5 [VFC.AUD.B9S.NAE]](https://bulletproof-live.magepitstop.com/wp-content/uploads/2025/02/MessagesImage_2673813381__1_d388ae2d-6558-4b43-805a-23fde77d00ec-450x450.jpg)
![VF Engineering VF500 Supercharger System for B7 Audi S4 [VFK80-11]](https://bulletproof-live.magepitstop.com/wp-content/uploads/2025/02/MessagesImage_1443101596_-gigapixel-hq-scale-2_00x_e78dc351-7615-4d9c-bdb0-5e6a5b56e631-450x450.jpg){kind=tracking}
![VF Engineering VF500 Supercharger System for B6 Audi S4 [VFK80-01]](https://bulletproof-live.magepitstop.com/wp-content/uploads/2025/02/MessagesImage_1443101596_-gigapixel-hq-scale-2_00x_e78dc351-7615-4d9c-bdb0-5e6a5b56e631-1-450x450.jpg){kind=tracking}
