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Bostrom Racing Gild Series Race Core Flanged Bolt-On Stainless Steel Muffler p4400806

Bostrom Racing Gild Series Race Core Flanged Bolt-On Stainless Steel Muffler p4400806

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Bostrom Racing Gild Series Race Core Flanged Bolt-On Stainless Steel Muffler

Dennis Kirk Part #: 4400806

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Bostrom Racing Gild Series Race Core Flanged Bolt-On Stainless Steel Muffler p4400806 p4400806
Bostrom Racing Gild Series Race Core Flanged Bolt-On Stainless Steel Muffler p4400806
  • Endorsed by two top street-racing brothers, Bostrom Racings Gild series bolt-ons are the result of extensive track and R&D testing and are tuned to work perfectly with your bikes stock fuel curve/mapping
  • State-of-the-art design features stainless steel mid-pipes and show-quality polished stainless steel muffler shells, end caps and tips
  • 2.5" diameter outlet tips have an aggressive 55 deg. slash-cut that screams MotoGP and/or Stunter styling
  • Muffler shells are extremely lightweight and robotically welded for a seamless fit
  • 6061 T-6 aluminum billet end caps are CNC-machined from solid material to exacting tolerances
  • Components are so precisely machined and assembled, that they require only four stainless steel button head screws on each end to secure them
  • Exit caps are stylishly milled with the Boz Brothers "B" logo and tribal etching
  • Bolt-on has a racing core and is packed exclusively with long-lasting Silent Sport Premium from Germany
  • Racing cores feature 15" L muffler shells and 2.5" low-percentage perforated cores for maximum flow and aggressive exhaust tone; most average 85-88 dB at idle; 97-100 dB at 5000 rpm (tested statically at 20", 45 deg.)
    NOTE: This is a general picture the actual exhaust for your motorcycle may differ slightly

  • Installation of a new exhaust system may change your motorcycles fuel-air mixture requirements. Please consult the manufacturer directly with questions regarding any modifications that may need to be made during, or after installing their product. If a jet kit or EFI controller is recommended please see the Intake/Fuel section for products available
  • Exhaust discoloration (blueing) is caused by engine conditions such as cam timing, fuel-air mixture, operating temperature, etc. It is not the result of defective manufacturing; therefore it is not covered by any warranty. See the Chems/Lubes section for products to help remove or prevent exhaust discoloration


This item ships in 3-4 days after the order is placed.
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Bostrom Racing Gild Series Race Core Flanged Bolt-On Stainless Steel Muffler p4400806
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