I have a 2005 WRX, Cobb access port, nothing more...yet. Well not that affects this particular thread anyway. I am thinking about getting the Cobb catted downpipe with the Borla Hush twin tipped cat back. Aside from the Cobb map not being exact, anybody have any thoughts on it? Would it ruin the whole object because the muffler isn't high flow (assumption because it is quieter then the Cobb one)? I am most worried about efficiency and not destroying my engine...power is third on that list, but I know it will be a welcome side effect
In case anybody is wondering, I plan on getting cold air intake then getting a custom tune as soon as funds allow.