2001-2004 LB7 DURAMAX BUILD YOUR OWN TUNING PACKAGE SELECT TUNE:SINGLE TUNE 8x ½” – 13 x

8x ½” – 13 x 1-1/2” Grade 8 Hex Flange Bolt

A unique laser-cut aFe Power logo plate is welded-on for an aggressive style

PROVEN DYNO NUMBERS SHOW OUR HSP INTAKE PROVIDING 20 ADDITIONAL HORSEPOWER AND 58 POUNDS OF TORQUE ON AVERAGE

when running boost levels over 48 PSI head studs are highly recommended

2001-2004 LB7 DURAMAX BUILD YOUR OWN TUNING PACKAGE SELECT TUNE:SINGLE TUNE 8x ½” – 13 xEFILive 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) THIS TUNING IS STAGE 1 ONLY ( STOCK FUEL AND STOCK TURBOS ONLY) POWER LEVELS LEVEL 1 30 HP LEVEL 2 60 HP LEVEL 3 90 HP LEVEL 4 120 HP LEVEL 5 150 HP