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Upgrade your exterior styling with the ECS Tuning Gloss Black Rear Diffuser for your pre-facelift B9 S4
Reducing or eliminating knock back by allowing the rotor to float and self-center results in a more consistent pedal feel and braking
During cruise
high destiny fin pack both internally and externally which translates to better heat absorption internally as well as heat dissipation externally without compromising airflow
BMW M3 G80 2021+
Ultra Racing Audi A3 Mk2 (8P) Rear Lower Brace URRS4-823P RE2-1410 Upgrade your exterior styling withMounting points 4 Uses original nuts bolts for mounting unless supplied Technical info: BEFORE : On uneven bumpy road, center section chassis will have different level of body flex cause by the weight transfer between front and rear. AFTER : Ultra Racings side lower bar will stabilize the weight transfer between front and rear, it can also minimize the damage from side impact.
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