Customize the performance of the Allison transmission in your 2004.5-2005 GM 6.6L Duramax LLY with the Oz Tuner OZ-TT-LLY EFILive Custom TCM Tuning. TCC Solenoid Short to Ground and Short to Open (PO742 and PO743) disabled. This will ensure that your lockup controller, such as the FPE AlliLocker, never sets a check engine light. Shift pattern optimized for your gear ratio and tire size. Can be tuned for a higher RPM shift schedules for larger than stock turbos, tall gear ratios and tall tires.
How It Works:
Once you purchase this tuning, Oz Tuner will contact you for specific information about your truck. This information includes VIN number, modifications, tire sizes, and more. Once this information is supplied, the experts at Oz Tuner will build TCM tuning specifically for your truck and you will receive the files via email to load into your EFILive device.
- TCM Tuning
- For Allison Transmissions
- Optimized Transmission Performance
Note: This is tuning only. You must have an EFILive device to load this tuning into. Due to the fact that this product is software that is custom tuned to your unique VIN, it cannot be returned.