BMW part - Conforti Shark Injector for E39 525i/530i, E46 325/330, Z3 2.5/3.0. or for E39 525i/530i, E46 325/330, Z3 2.5/3.0. Applications: 2001 - Feb 2003 525i/530i, 325/330i/Ci, Z3 2.5/3.0 (E39, E46, Z3). Conforti Performance Engine Software represents the most cost-effective approach to increasing engine performance. It has been dyno-tested to provide a safe increase in power by altering fuel enrichment, cam timing and ignition timing specifically for use with premium gasoline. JC Shark Injector OBD-II Performance Engine Software also provides an increase in the factory rev-limit allowing for optimum shift points for maximum acceleration. Not only do we re-map part-throttle fuel and spark, we also re-map other areas of chips other tuners don't touch - such as acceleration enrichment, transition fueling (how the car responds to rapid change in pedal, and VANOS control as needed to optimize the vehicle for operation on premium fuel. This new software for the 2.5 and 3.0 engines is fully octane adaptive. It takes advantage of premium fuels from 91 AKI to 95 AKI and higher. There is no need for separate octane related variants with this software!