any Ford dealership will probably not install it 1st off and if they would they would charge you an insane amount of money too. also dont expect much power gain from just an exhaust. cheapest aftermarket would probably be from
www.trubendz.com . are you looking for something cheap or do you want something exspensive like borla ? no, it wont affect your o2 sensors. some people might say find a SVT exhaust and modify it but, even that gets exspensive after buying new mufflers, resonator ,and having it welded.
