Description The MS 271 FARM BOSSÂ replaces the mighty MS 270 with a saw thatâs loaded with features and technology. It starts with a highly efficient engine that delivers 20% longer run times between refuelings â while cutting exhaust emissions in half compared to the MS 270. Thereâs also a pre-separation air filtration system thatâs so effective, your air filter can last up to five times longer (now thatâs high performance). All engineered into one compact, ergonomic design.