MS1k for your Caliber SRT4

- ECU must be sent in up front

- All OEM emissions equipment must be installed in order for the ECU to not toss a CEL. MS1k uses all OEM emissions regulations and requirements.

- Please select 91 or 93 octane for your MS1k. You must use the octane you select or higher at all times. If you select 91 you must use 91 or higher. If you select 93, you must use 93 or higher.

- After you purchase, please email for our shipping address to send your ecu.