I'm considering martyo's Black Friday deal on SW headers for the Marauder. Since I'm N/A with a Zack tune and probably will stay that way for a good while, I was going to buy the catted headers with the factory exhaust connection.

I've done some reading on the forums and I'm getting conflicting information, or maybe I'm just getting myself mixed up. Some posts indicate a possibility of a lean condition after the header install, other people say it's fine and the car simply won't be 'maximized' in terms of HP.

Also seeing folks fighting with the EGR - how bad is that?

Talk to me.