Jan 9, 2010 tekgik: Mitsubishi’s 4d56 engine is over a decade old. Now with this new tech i never thought it can kick some additional horse power tekgik: Mitsubishi’s 4d56 engine is over a decade old. Now with this new tech i never thought it can kick some additional horse power If you enjoyed this post, please consider leaving a comment or subscribing to the RSS feed to have future articles delivered to your feed reader. Twitter / tekgik lifestream 0