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 made the OEM J Pipe out of plastic, which is prone to cracking and 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. It's designed to lock onto the stock throttle body using a CNC machined connector, which incorporates a locking C-clip design that replaces BMW's one-time-use plastic strip to create a secure connection.
Included are two pre-plugged 1/8" NPT fittings that allow for post-intercooler methanol or nitrous injection — the preferred injection location for many S55 tuners. J Pipes with only one methanol port can't supply enough methanol to advance timing enough for substantial power gains.
For reinstalling your S55 vacuum line, the ARM J Pipe has a precisely machined vacuum line connection port to prevent leaks, a common issue on other S55 J Pipes.
ARM MOTORSPORTS LIFETIME WARRANTY
Every ARM Motorsports product is backed by a lifetime warranty, automatically issued at the time of purchase. Your warranty protects you against any defects in craftsmanship or fitment and entitles you to a replacement unit.
FITMENT
- F80 M3
- F82 / F83 M4
- F87 M2C
