Bully Dog Big Rig Tuner for Cummins ISX & ISM Engines 03-09

ISX/ISM ‘03-’07
ISC/ISL ‘07-’10
ISX/ISM ‘07-’10
ISC/ISL/ISX11.9/ISX15 ‘11-’12
ISL9/ISX12/ISX15 ‘13

The Heavy Duty Gauge Tuner incorporates Bully Dog's SAE tested and emissions tested diesel engine tuning with a complete gauge package, diagnostic features and the famous economy focused driving coach to bring you a tool that will maximize your vehicle utility.

* Not legal for sale or use on pollution controlled vehicles based and registered in California.*
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