I would get a used powrtuner in the for sale section instead, you will want to tune your pcm with that pulley and you can also scan for KR, although not all of the time but if your tune is in place, you don't have to watch out for KR always.

You don't have to know how to tune to get started, you can use one of the dhp 1.5 files to begin

new aeroforce + box tune pcm = $300+

used powrtuner = 300 bucks shipped.