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drt44
11-09-2003, 11:53 AM
I recently added the SMA performance package II with the headers, exhaust and airflow but did not go with the computer upgrade. I was wondering if anyone had done the computer upgrade, and if so did it make a difference and what did it do to the gas mileage? I saw the upgrade available for about $625.


2003 Yellow H2

JGThomas
drt44
11-09-2003, 11:53 AM
I recently added the SMA performance package II with the headers, exhaust and airflow but did not go with the computer upgrade. I was wondering if anyone had done the computer upgrade, and if so did it make a difference and what did it do to the gas mileage? I saw the upgrade available for about $625.


2003 Yellow H2

JGThomas