TMONEYDIESEL
Comp Diesel Sponsor
- Joined
- Jan 21, 2007
- Messages
- 8,706
Removing the heater grid will produce more measurable gains than a new horn.
You'll see better gains with a new aftermarket 6.7 intake, the heater grid is bad on the 6.7 but the intake horn is even worse. Delete the grid heater and do a aftermarket intake.