HIGHLIGHTS

•  FULL T6061 ALUMINUM CONSTRUCTION
• SECURED THROTTLE BODY CONNECTION

• 2X METHANOL/NITROUS PORTS
• DIRECT FIT

Complete your S55 upgraded charge piping with the ARM S55 J Pipe!  This J Pipe is the final piece of piping on the S55 before the charge air enters the intake manifold.  BMW constructed the OEM J Pipe of plastic which is prone to cracking an detaching from the throttle body under boost.

The ARM S55 J Pipe is constructed of T6061 aluminum for a durable replacement that will hold up to even the most demanding builds.

The ARM S55 J Pipe is designed to lock onto the stock throttle body using a CNC machined connector.  This connector incorporates a locking C-clip design which replaces BMW’s one-time use plastic strip to create a secure connection to the throttle body.

Included with the ARM S55 J Pipe are two pre-plugged 1/8 NPT fittings which allows for post-intercooler methanol or nitrous injection.  This is the preferred location of injection for many S55 tuners.  J-Pipes with only one methanol port are not able to supply a sufficient amount of methanol for advancing the timing enough to make any substantial power increases.

For reinstalling your S55 vacuum line, the ARM J Pipe has a precisely machined vacuum line connection port to prevent any leaks, a common issue on many other S55 J Pipes.

IN THE BOX

• ARM S55 J Pipe
• Intercooler To J Pipe Silicone Hose

• Throttle Body Retaining C-Clip

• Replacement O-ring
• Clamps

FITMENT GUIDE

Make	Chassis	Model	Engine
BMW	F80	M3	S55 3.0L
BMW	F82	M4	S55 3.0L
BMW	F83	M4	S55 3.0L
BMW	F87	M2C	S55 3.0L