Originally Posted by Chi-Town SRT/6
ECU upgrade is actually advertised to increase fuel efficency. Check it out
www.inmotionusa.com
Well, that is true, but my own personal experiences have proven otherwise on two applications. I had an Upsolute Chip on a 1.8T MIV Golf, and Diablo Chip on a Focus SVT that dropped the fuel economy about 10-20%. I'd like to see that cliam be accurate for once.