hey guys, wot u guys think would be the best header for my set up? b18c1 with just an inkate, catback and decat? pretty poor setup i kno but i've only jus got the motor in lol i preffably want a 4-1 header without taking a huge chunk out of my wallet. i got around 400$ i want to spend, wot would be the best header for my set up? jdm itr?

thanks