Evolution Racewerks Diverter Valve Charge Pipe Kit - BMW 1M/135i/335i (N54) 09-12

Increase throttle response and decreases turbo lag with a Limited Lifetime Warranty charge pipe

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Price:
$299.95 – $354.95

The later N54 equipped BMWs had a 1-piece factory charge pipe that included a non-removable according elbow. This included the late production 2009 model years, all 2010 model 135i/335i, as well as 2011 model 1M, and 2011-2012 335is, and Z4 35is. This replacement charge pipe is designed to replace the charge pipe and elbow completely. It can be used on the earlier cars, but the "short pipe" version exists to save you some costs over the longer version. You can use this later "long tube" style if you like on earlier cars as well. For a graphic that shows the difference between the long and short tube charge pipe version, click here.

BMW N54 Turbo Charge Pipe Short vs Long tube accordion

Ease of Installation: (1 Easy, 5 Hard) 1

Key Features:
  • Increases throttle response, decreases turbo lag.
  • Compatible with factory diverter valves or aftermarket factory style diverter valves.
  • Lightweight High Grade 6061 Aluminum Piping.
  • Throttle body matched 3" piping.
  • Retains factory style o-ring throttle body lock flange. Precision CNC machined throttle body flange ensures leak free connection to throttle body. Quick and easy connection and disconnection to throttle body. Ideal connection compared to the silicone hose and hose clamp connection found in all other aftermarket diverter valve upgrade pipes available in the marketplace.
  • Precision CNC machined MAP sensor flange ensures leak free connection.
  • Diverter Valve Charge Pipe features beaded ends and T-bolt clamps to prevent intercooler piping from coming off from boost.
  • Factory diverter valve sound baffle, which causes turbulence in the factory pipe, is removed.
  • Optional Type III Hard Black Anodizing (for stealth and OEM look). Hard anodizing helps improve durability of intercooler piping. Resists bent or dented piping.
  • Includes all hardware for complete installation.
  • Limited Lifetime Warranty.
The factory diverter valves are not able to hold up against the rigors of high boost application. Often ignored, charged intake airflow characteristics greatly affect throttle response, turbo lag and ultimately maximum power potential. Smooth bends and minimal obstructions are ideal, which are not the case with the factory diverter valve charge pipe.

Since one of the reasons for changing out the factory diverter valves was to prevent boost leaks (from prematurely opening on high boost), causing boost leaks while upgrading the diverter valve would be counterproductive. During research and development, the connection at the throttle body was looked at carefully. The factory diverter valve is connected to the throttle body using an o-ring inside the throttle body flange which is locked in place by a c-clip, which works very well. It also make removal/installation quick and easy. Testing showed it could hold quite a bit of boost. Pressure was tested up to 25 PSI.

Many competitive products use a silicone hose connection for the throttle body connection. It is not designed for a silicone hose connection which is used by other brand diverter valve pipe upgrades. The throttle body lip is too short and there are no "beads" to prevent the silicone hose from blowing off under boost. Even though it is the easiest way to upgrade, it is not ideal. The best way to connect the new diverter valve pipe to the throttle body is to replicate the stock connection.

The MAP sensor flange is also designed to mimic the factory setup. The CNC machined MAP sensor flange utilizes the factory o-ring seal for strenght and reliability.

The Diverter Valve Charge Pipe is available in 2 finish options. Mirror polish finish and Type III Hard Black Anodizing. An added benefit of the Type III Hard Black Anodizing is that it hardens the aluminum piping and makes it more durable against accidental damage (like dropping the pipe).

1/8" NPT threaded bungs (for methanol or nos injectors) are available welded to your diverter valve charge pipe. This allows quick and easy installation of methanol/nitrous injectors. You have the option of adding 1 or 2 injector bungs. Each 1/8" NPT bung will come with a plug so that you can run with or without the methanol injector. This is perfect for those who do not have the Methanol Injection yet but plan to do so in the future.

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