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the stock ECU calibration will ignore the harness input until the tune is flashed (do not run ethanol without the TrueFlex tune on the ECU)
in-house designed and engineered brake cooling duct kit is an easy to install
transient response and induction sound
torque and sound
Ultra Racing Mercedes R Class (W251) Rear Lower Brace URRS4-1682P Rear Anti Roll Bar 16mm the stock ECU calibration willMounting 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.