
The Story
We've all have seen the head gasket failures between cylinders 5, 6, and the coolant ports with the new 6.7L siamese cylinder design. The Air-Boss 67 Grid Heater Delete removes the restrictive factory grid heater and opens up the internal plenum area to the starving rear cylinders. Increasing airflow to the rear cylinders reduces EGT's and allow you to run even higher fueling levels!
IMPORTANT NOTES:
- For cold weather applications please see the new GDP "Arctic Heat" High Flow 6.7L Grid Heater Relocation Kit.
- This product will NOT work on Cab & Chassis models. Please see the GDP Air-Boss CC for these models.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
We've all have seen the head gasket failures between cylinders 5, 6, and the coolant ports with the new 6.7L siamese cylinder design. The Air-Boss 67 Grid Heater Delete removes the restrictive factory grid heater and opens up the internal plenum area to the starving rear cylinders. Increasing airflow to the rear cylinders reduces EGT's and allow you to run even higher fueling levels!
IMPORTANT NOTES:
- For cold weather applications please see the new GDP "Arctic Heat" High Flow 6.7L Grid Heater Relocation Kit.
- This product will NOT work on Cab & Chassis models. Please see the GDP Air-Boss CC for these models.
















