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LT5 Performance Engine Calibrations

These engine calibrations are designed for stock or slightly modified engines.

Modifications that are accommodated nicely by these calibrations include: Low backpressure exhaust systems and intake air flow improvements.

The calibrations are based on the latest GM service part calibrations that are available for the LT5 engines.

 Description of Calibration AYBKG for '90 LT5's

Description of Calibration BFXBG for '91 LT5's

Description of Calibration BPPAG for '92 LT5's

Description of Calibration BMCBG for '93 - '95  LT5's

Installation instructions can be found in the Presentations section of this site. Refer to the last four pages of the 2003 presentation.