SWM RS300R Arrow exhaust preview and weight comparison.

The SWM RS300R Enduro bike came with a 2 to 1 to 2 exhaust system. The stock setup is heavy and restrictive. The Arrow exhaust (Part#: ACCA200001 ::) is significantly lighter and as I understand it is a significant part of the power-up kit which works in sync with the ECUs race map that’s enabled by the Lambda bypass which is actually just a 1/2w 2200ohm resistor plugged in instead if the O2 sensor. P.S. Big thanks to my brother for going through all the trouble