BMW X5 tuning

After defecting to Porsche for a couple of years, Chris Marino has returned to Century West BMW. Marino, as many BMWBLOG readers may recall, had a penchant for utilizing the BMW Individual Program and creating…

Project X came to PSI as a 100% stock X5 xDrive50i with the client’s initial goal of making a faster winter time vehicle. PSI delved into the performance upgrades for the X5 and shortly the…