Duramax Super Chip Programmer
Super Chip Duramax Diesel Programmer for 2004-2007 Chevy's.
Has 3 modes:
Stock
Towing
Performance
Improves towing MPG by 5-6. Change modes in 2-3 minutes via under dash plug in.
New unit costs $495. Asking $200 plus shipping.
Sold my deisel...don't need it anymore.
Randy Running
248-343-1280
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