I need lines 1,2,3,4, t junction and restrictor pill from below photo link

Google Image Result for http://www.cobbtuning.com/images_products/07_Subaru_ServiceBulletin_2.jpg

Is it only subaru I can get these items from
Car is idling bad and not holding boost.
Pipes are cracked and now dont have restrictor pill
(fitted new spark plugs today which didnt help ngk 7b ones)

cheers