The TST AFC Spring Kit allows you to achieve a good compromise of minimal smoke under acceleration with responsiveness. Kit Includes-Medium and light AFC springs for the P7100 pump, Allen screws,Allen wrenches, Break-off screws, Instructions are included, of course.

The kit goes into the same AFC housing that is removed to install the TST Power Kit. The AFC Spring Kit is recommended for 215 hp engines at any power level, for higher power kits in the other Ram diesels, and for engines with the 16 sq. cm. turbine housing.