I have both the shark injector and sprint booster installed on my car. The shark injector alone was pretty awesome. It wasn't as dramatic as some might expect but it definitely refined the car and brought it to a higher level. I noticed more power in the mid to high range as well as improved throttle response. Coupling this with the sprint booster made it feel like more of a sports car than a luxury car. Its a great combination for those performance minded enthusiasts.
Last edited by InZain08; 11-25-2012 at 05:17 PM.