I don’t run the plug I have the egt probe in there but the squeal I had was real loud and sounded like it was coming from under the dash. It still whistles with the straight pipe.
I don’t run the plug I have the egt probe in there but the squeal I had was real loud and sounded like it was coming from under the dash. It still whistles with the straight pipe.
Mine has that squeal with the EGR cooler in place.
I started to hear it as soon as I went to a 5” straight.
I’m gonna guess there is a leak at the brake/ down pipe flange.
A lil bit of that’s gonna be normal.
Good stuff.... Truckers bring it
Bookmarks