Mopar Performance manufactures an orange and a chrome ECU (good for 8,000 and 10,000 rpm, respectively), but the stock ECU is good for most street/strip applications up to 7,000 rpm.

The standard ECU included with the time-tested Mopar Performance kit is the so-called Orange Box (P4120505) and is great for general performance up to 6,000 rpm. For more aggressive engine ...