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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
a Pocket Cutter Tool (Sold Separately) may be required to ensure proper fitment
This spring kit is crafted with precision
even under high RPM and extreme load conditions
allowing on-demand adjustment without stopping or reflashing
5’ OBDII pass-through cable
2020-2023 Duramax L5P Transmission Tuning Package 2020-2023 Duramax L5P Transmission Tuning (Shift Stratagy Type:):Standard Shift a Pocket Cutter Tool (SoldThe 2020 2023 L5P Duramax is known for its smooth shifts and great performance while towing. However, it still leaves a bit to be desired when it comes to shifiting in high performance senarios. It can fall behind due to its drawn out shifts and its weaker clutch holding strength. Changing the factory calibration is especially important when you modify your truck and or install ECM Tuning. Custom TCM Tuning gives you quicker shift changes, smoother
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