I thought the same thing untill the vets attacked me and helped me to see the light....ubend delete jus attributes to better flow do to being restrictive ,stock wires are primarily recommended and as far as the pcm goes,that is usually tuned just better than stock from what i have read....but i do understand your point of view....im sure the vets will chime in to give you more insight.....i potentially could be wrong about it all.....lol!.....also the cai could be a performance modd,i suppose!