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ECM Prom Chip Dose Anyone Know the difference

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Old Apr 12, 2010 | 12:48 AM
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Default ECM Prom Chip Dose Anyone Know the difference
dose anyone know the difference in the prom chip if i one says R665 on the inside sticker & anht 4298 on the outside sticker & the other one says R665 on the inside sticker & anhu 4303 outside sticker
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Old Apr 12, 2010 | 02:20 AM
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Both from '90 Vette
ANHT is for 3.07 rear so might have different calibration but I doubt you will see any difference between them performance wise
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Old Apr 13, 2010 | 06:49 AM
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Default chip
Originally Posted by vetteoz
Both from '90 Vette
ANHT is for 3.07 rear so might have different calibration but I doubt you will see any difference between them performance wise
so what is the story the the anhu 4303 chip
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Old Apr 13, 2010 | 06:50 AM
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Default chip
ttt
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Old Apr 13, 2010 | 09:27 AM
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Originally Posted by zz90vette
so what is the story the the anhu 4303 chip
Only other rear ratio for auto is 2.59
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