Welcome › Forum › The Lounge › Engine Tuners This topic contains 0 replies, has 1 voice, and was last updated by loneleon 5 months, 4 weeks ago. Creator Topic June 13, 2019 at 1:45 am #84405 loneleonParticipant Are engine tuners like superchips worth buying? Do they really improve the performance of a car, in terms of acceleration and fuel efficiency? This topic was modified 5 months, 4 weeks ago by loneleon. Creator Topic You must be logged in to reply to this topic.