Due to high demand, tuning turnaround is a minimum of 2 weeks. Current lead times on custom built turbos is ~1 month. Please plan accordingly. We thank you for your support of the finest parts available for the 6.5L Turbo diesel platform!

OBDI Single Tune for 1994-95
Single replacement PROM chip for 1994 and 1995 6.5L Diesel vehicles.
After completing an order, we will provide a comprehensive online form for you to fill out with all vehicle details and your tuning preferences. The tune is then created and we send a completely new chip for you to swap in, with instructions. No core returns are required!
Check out our switchable tuning for more details or as a popular upgrade to this item! https://quadstartuning.com/products/obdi-multi-position-tuner