Hi am new to my MPS 6 just picked it up.. Was wondering whats the best way to go, am looking for more performance over sound. I read on the forums some say just change the dump? to get more performance is that keeping the rest stock?? and what size should i get if i do a custom cat back? cuz i was thinking of getting it custom. unbranded but unsure about the size am usually a vtec guy haha so 2 1/4 normally does the job lol.
Also looking to change the intake.. just wondering what suggestions people have on whats best, stock box with KnN filter.. Short Ram. or the long ram sitting the pod behind the grill?
AS much advice and suggestions would b really helpful guys, quite new to mazda thanks