NOT LEGAL FOR SALE OR USE IN CALIFORNIA. This part has not been exempted by the California Air Resources Board and has no CARB Executive Order. It may not be sold for, installed on, or used on any vehicle registered or operated in California. We do not ship it to California addresses or offer it for local pickup.
Free shipping within the lower 48 states.
International orders: we do not ship this brand outside the US and Canada through checkout. Contact us for a shipping quote before ordering.
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
