Smart Car of America Forum banner

renntech

  1. I ordered RENNTECH's ECU upgrade for US 451s.

    smart Modifications
    Yesterday, I ordered RENNtech ECU new reflash specifically written for our US market 451-431 (71 hp). Renntech was founded 20 years ago by the former Technical Director of AMG North America. He is known for the development of the famous four valve "Hammer" engine, ''the 186 mph 4-door that...
Top