ranger performance kits

[apowers1]

hi, i found a true rev sport induction kit at a kirtz kustoms performance website, but its 90 bucks just for a adaptor and filter, which is kinda expensive. if anyone knows a place where i can find that adaptor to convert my air meter from square into round, so that i can put a universal k and n air filter, please respond and let me know. also if anyone else knows any other place that sells kits similar to the true rev sport induction, please let me know too,

heres the site where the kit is located, http://www.kustomz.com/cat1.html

also if anyone else has any other suggestions as to how i can go about doing the same thing as in this kit for a cheaper price, please let me know,

i have a ford ranger v6 3.0 L 2000

thank you