NOTE: FOR USE WITH PSI HARNESSES ONLY

APPLICATION: 2006 - NEWER 58X LS AND VORTEC 4.8L, 5.3L, 6.0L, & 6.2L ENGINES

PARTS INCLUDED:  E38 ECM w/ PROGRAMMING

NOTES: This includes programming for any stock engine application listed above. This programming is for any 2006 - NEWER GEN IV LS AND VORTEC 58X engines. PSI programming includes correct operating system and the following: 

• Removal of Vehicle Anti-Theft System (VATS)
• Lowering of Cooling Fan Temperatures (Fan #1 ON at 182F, Fan #2 ON at 192F)
• Updates for Correct Tire Size and Gear Ratio

**FOR OFF-ROAD USE ONLY**

WARNING: THIS IS A BASE START UP TUNE, PSI RECOMMENDS HAVING VEHICLE DYNO TUNED OR SERIOUS ENGINE DAMAGE WILL RESULT.

WARNING:  IF YOU ARE RUNNING A CUSTOM CAMSHAFT, POWER ADDER, OR ANY OTHER AFTERMARKET PERFORMANCE COMPONENT THE FOLLOWING MAY RESULT - NO START, ERRATIC IDLE, SURGING, CHECK ENGINE LIGHT CODES, AND LIMP MODE. ENGINE WILL REQUIRE CUSTOM TUNING.

Your Gear Ratio (For example 3.73 Read End Gear) and Tire Size (for example 285/35/18, or 27 inch diameter) are needed so that the ecm can calculate the correct vehicle speed.

*Don't forget to Mail In your Customer Supplied T43 TCM (located inside your 6L80e transmission).

(Warning) This is a RACE ONLY product manufactured and sold for installation on vehicles to be used solely for competition purposes. Once this part is installed, the vehicle may never be used, or registered or licensed for use, on a public road or highway. If you install this part on your vehicle and use the vehicle on a public road or highway, you will violate the Clean Air Act 203(a)(3), 42 U.S.C, 7522(a)(3) and may be subject to personal civil or criminal liability.