You are Ordering a PRE-TUNED DURAMILEAGE ECM (engine control module).
Please include your truck's VIN# and Tire Size in the shipping instructions. Also include a brief discription of your driving habits (towing# etc) and let us know if you want the Speed Limiter raised.
These Pre-Tuned ECM cores are used exchanges: If you return your original ECM with in 30 days of purchase we will buy it from you for $100.
PRE-TUNED ECMS MAY TAKE 2-3 WEEKS TO SHIP DEPENDING UPON CORES BEING IN-STOCK .
PLEASE CALL BEFORE ORDERING TO CONFIRM AVAILABILITY!
