If you're looking to upgrade your BMW 535i with the N54 engine, you’ve probably thought about swapping out that factory diverter valve. I mean, who wants to deal with boost leaks, right? Evolution Racewerks really hit the mark with their diverter valve charge pipe, designed specifically to tackle those pesky boost leaks that can happen when the factory valve opens too soon under high boost. You want reliability when you're pushing your ride, and this setup delivers.

During their R&D, the team at Evolution Racewerks took a close look at the connection point at the throttle body. They found that the factory diverter valve connects using an O-ring nestled inside the throttle body flange, secured by a C-clip. This setup is not just solid but makes removal and installation a breeze. They pressure-tested this connection up to 25 PSI, and honestly, it held like a champ. They had to stop the test there because one of the intake pipes blew off! That said, the throttle body flange showed no signs of weakness, so you can bet it can handle more than 25 PSI without breaking a sweat.

And here’s something to consider: this type of connection isn’t just used for the diverter valve; it’s found in critical systems throughout the engine, like the coolant radiator and the clutch system. If BMW trusts this design in those areas, you know it’s built to last. A lot of competitors opt for silicone hose connections, which might seem like an easy fix, but they’re not ideal. The throttle body lip is too short, and without those crucial beads, it’s just a matter of time before that hose blows off under pressure. Evolution Racewerks went the extra mile by replicating that factory connection, ensuring a boost leak-free experience with their precision CNC machined throttle body flange.

Now, let’s talk about the MAP sensor. It seals to the factory diverter valve pipe with an O-ring, and if you’re using a silicone hose, well, good luck keeping that boost in. Evolution Racewerks also crafted their own MAP sensor flange that uses the same factory O-ring seal, so you can rest easy knowing everything is tight and secure.

Fitment:

• BMW 535i Twin Turbo N54 Engine (E60/E61) 2008-2010

And just to keep it clear, this fits:

• BMW 535d 2008-2010
• BMW 535i 2008-2010

So if you’re ready to step up your game, the Evolution Racewerks 535i N54 3.0TT Diverter Valve Charge Pipe is definitely worth considering. It’s not just another part; it’s a solid upgrade that keeps your boost where it belongs—under the hood and not leaking out!