Hey Folks got a question hoping some one can answer quickly her goes i'm putting a BB in my 97 tj 4cyl and the coils being 11 years old and i asume saged out , would i benifit from putting 04 sahara coils in it if i even can where it's a 6cyl ? one other question would sahara coils be bigger or just more heavy duty because of the 6cyl engine? thanks in advance for any help terry..