2001-2004 LB7 DURAMAX BUILD YOUR OWN TUNING PACKAGE

Regular price $1,620.00 Sale

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Availability: In Stock Unavailable

EFILive tuning for the 2001-2010 Duramax is now available to meet your desired horsepower gains. Each AutoCal will come with 5 tunes. Tuning available from other tuning vendors* (pricing may vary)...

SELECT TUNE

TRANSMISSION TUNING

EXHAUST SIZE

SOTF

SINGLE TUNE

YES

4" WITH MUFFLER

4" STRAIGHT

5" STRAIGHT