H&R Anti-Roll Bar Kit – 33039-1 (Front & Rear) BMW M3 E9X BMW > M4 > G87 2023- this atmospheric diverter valve dumps

this atmospheric diverter valve dumps the charge-air to atmosphere creating the "Whoosh" sound most commonly associated with rally cars when the throttle is lifted

Forge Motorsport has taken several vehicles through the testing process to determine the maximum lift while still giving the vehicle a factory ride

Styled specifically to enhance modern performance vehicles with a contemporary aesthetic from VAG Group

For Williams models use PFF60-301 or PFF60-301G

H&R Anti-Roll Bar Kit – 33039-1 (Front & Rear) BMW M3 E9X BMW > M4 > G87 2023- this atmospheric diverter valve dumpsH&R Anti Roll Bar Kit 330391 (Front & Rear) Upgrade your BMWs handling with the premium quality H&R Anti Roll Bar Kit 330391a complete front and rear sway bar setup engineered for enhanced cornering control and road confidence. Product Overview: Brand: H&R Part Number: 330391 Type: Front and Rear Anti Roll Bar (Sway Bar) Kit Construction: High tensile German spring steel, powder coated, with precision forged ends and composite rubber bearings