GM TPI Products

Calibration Proms & Mem-Cals

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CALIBRATION PROMS: 1985-88, 305/350 w/ MAF Sensor

CODE: MC237

$195.00

Part # MC237 All TPI and LT-1 ECMs from 1986-93 require the correct Mem-cal to supply fuel and spark calibrations. Custom programmed mem-cals are needed to... More

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CALIBRATION PROMS: 1989 305/350 w/ MAF Sensor (No VATS)

CODE: MC240

$100.00

Part # MC240 1989 TPI ECMs require the correct Mem-cal to supply fuel and spark calibrations. Custom programmed mem-cals are supplied to defeat VATS, and... More

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CALIBRATION PROMS: 1990-92 305/350 (No VATS)

CODE: MC239

$175.00

Part # MC239 All TPI ECMs from 1990-92 require the correct Mem-cal to supply fuel and spark calibrations. Custom programmed mem-cals are needed to defeat... More

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