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    Arrow 71631MI Racing Exhaust Collector for BMW S1000XR (2015-2016)
      Arrow 71631MI Racing Exhaust Collector for BMW S1000XR (2015-2016)
      Purchase Arrow 71631MI Racing Exhaust Collector for BMW S1000XR (2015-2016)

      SKU: AR-71631MI
      MPN: 71631MI
      Arrow 71631MI Racing Exhaust Collector for BMW S1000XR (2015-2016)

      $973.00 $875.70

      Ships in 1-3 weeks
       
       
      Arrow's 71631MI Racing Exhaust Collector is made specifically for BMW S1000XR (2015-2016).

      Stainless Steel Racing Collectors For Arrow And Original Silencers

      Collectors and pipes are a most important component of an exhaust system, making it possible to reach very important gains in terms of power and torque. Made in AISI 304 stainless steel and, for competition Full Titanium systems, in titanium, Arrow collectors design comes from the experience gained and the results achieved in years of races at all levels, with the un-replaceable “touch” of the master mechanics working in the R&D: diameters, sections, bends, section changes weldings and layout are carefully designed and developed on the bike to create a product with high performance, durable, reliable and with the unique Arrow style. 

      Depending on engine configuration and its spark timing, the layout can be really different as it’s needed to adapt it to changing needs: that’s why we speak about different schemes like 4:2:1, 4:2:2, 2:1:2, 4:2:1:2 and so on. To follow one scheme or another is a most important decision, to be taken at the very start of the project, and it will influence all the other steps. 

      To avoid unnecessary drag on the flow of exhaust gases, all junctions and connections are made using CNC-machined parts. For the same reason, all welds need to be perfectly made and non-invasive, avoiding any section reduction for the flow of gases.

      AR-71631MI Racing Exhaust Collector fits to these Arrow Exhausts:

      Race-Tech Carbon End Cap
      Titanium- AR-71837PK
      Aluminum- AR-71837AK
      Aluminum Dark- AR-71837AKN

      Note: Does not meet CARB (California Air Resources Board) emissions standards. For "Competition" use only


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