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Straight Silent Series Exhaust - For 250mm Wide Tire w/O2 Sensor - H-D Softail Customs


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  • Model: 178-71590
  • Manufactured by: Supertrapp


H-D Softail Customs

  • Configuration: 2 into 1
  • End cap: Tuning discs
  • Finish: Chrome
  • Type: Full exhaust

California Restricted

California laws prohibit (in most cases) the use of any aftermarket product whose installation requires the removal of any emissions control related components as regulated by the California Air Resources Board (

If an item is designated as "Competition and Racing Vehicles Only", we will require a race waiver be digitally signed before an item can ship to California. If an item is to be exported from California, an export waiver is available as well. This is a REQUIRED guarantee from you that a restricted item will NOT be used on any public highway in California; only on private race tracks in racing or competition use.

  • Return your bike to near stock sound levels without returning to stock performance
  • Available in both tunable Megaphone and non-tunable straight body designs
  • 2:1 head pipe designs for maximum performance
  • 2.5" collector provides maximum flow even on big-bore motors
  • Three-piece full-coverage heat shields prevent blueing
  • Rebuildable core and packing
  • Includes 14 4" discs and mounting hardware
  • Made in the U.S.A.
Fitment note: Not recommended for use with Springer-style saddlebags.

This product was added to our catalog on Tuesday 27 September, 2016.

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