BMW Z4///M 343 Hp remapped to 357 Hp & 379 Nm. Posted byStef + Wednesday May 17th, 2017Tuesday May 16th, 2017 With: GruppeM intake and Hartge exhaust system, catless We remapped this BMW Z4///M 329 Hp & 362 Nm to 357 Hp & 379 Nm of torque.