Upgrading Your N54 Outlets for Real Power Gains
If you're chasing more power on your 335i or 135i, you've probably realized that the stock n54 outlets are a massive bottleneck for your turbos. Most people jump straight to a bigger intercooler, downpipes, or even upgraded inlets, but the "hot side" of the charge system often gets overlooked. It's a bit of a shame because those factory pipes are honestly pretty pathetic when you look at them side-by-side with a high-flow aftermarket version. ...