headers 4.6
I have the Gibson stainless steel headers on my 4.6. I had my mechanic do the install. He said it was not a bad install. I decided to have him do it when the instructions said to remove the front drive shaft. I have flowmaster dual out the back, and it is louder with the headers. Also more cabin noise coming from the engine compartment at certain speeds/rpms. Over all I love the sound, next is the magnaflow hiflow cats.


