In terms of what to go for for the 998 I am assuming given 45mm headers thatís the easiest fit, but for the 50mm cans do I just need the y tube to convert 45 to 50?
-- Just the slip-on will work. You can go with the 1/2 system if you like.
That said do I need to change ECU or no need?
-- Not if it is for cosmetic purposes, yes if you want to make used of them
If itís just the y pipe I need to get whereís best place to buy that?
-- Wherever the internet takes you. Ebay, HSBK Racing, Motowheels...
97 916/996 "The Time Machine"