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I am a painter at a Ford dealership collision center so I got one of the service techs I always use to install them for me. He had to use a swivel socket on one of the bolts. (I told him one of them was going to be a bear after what everyone said here) He said that took the longest. After that everything went pretty quickly.
93 tune (ZFG of coarse), whipper ic. I have not had it on a dump yet. I saw someone on here dyno theirs with a ZFG tune alone and gained a little over 100 hp. So I’m “ guessing” I gotta be close to 440/450 at the wheel with everything I’ve done.
Once I installed the Borla S-Type I never heard the FENG again so either the new louder exhaust blends perfectly with the FENG or its tone cancels it. I know its the Borla I am hearing because I can increase the volume of the Borla by opening a window. Maybe Ford stole the FENG sound from Borla on the down and low.