Arrow Racing 4:2:1 Header for BMW S1000RR ('19-) in SS

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Fits: 2019 - UP
? In the diagram, a Broken Line indicates that both items will connect together or will connect with the O.E. corresponding item at time of initial fitment.

Arrow Part Number - 71718MI
Note This ARROW Racing 4:2:1 Collector unit is designed to be used with any of the ARROW Slip-on Silencers [Race-Tech / Pro-Race / GP2] designed for this model.
Or alternatively, the O.E. silencer can be retained.

• Made from INOX Stainless Steel [AISI 304 grade] for a durable light weight item that allows performance gains.
• This Racing collector system is supplied with provision for the O.E. exhaust sensor mounting points (2).

> Technical Note :The BMW Original Equipment Collectors unit has a fixed exhaust valve attached.
When replacing this O.E. unit with an Arrow Racing Collector #71718MI, the exhaust valve will be eliminated.
The BMW On-Board Diagnostic System (EOBD) will display a warning message due to the exhaust valve malfunction [removal]
and the ECU can / will enter a 'Recovery Mode' status.
Therefore, when installing the Arrow Collector, it is strongly recommended to remap the ECU with
a 'Deactivating Exhaust Valve function' map.
Or alternatively, purchase and install an After Market 'Exhaust Valve Emulator System'.




Specifications for Link Pipe - 71718MI