Is a Catless Downpipe N20 Worth the Hype?
So, you're thinking about swapping your factory exhaust for a catless downpipe n20 to finally wake up that BMW engine. If you're driving a 328i, 428i, or any of the other N20-powered Bimmers, you probably already know that the engine is a bit of a mixed bag. It's got decent torque, but it feels like it's breathing through a straw once you start pushing it. The stock downpipe is the biggest bottleneck in the entire system, and for most people, going catless is the first "real" mod they consider after a simple air intake. ...