Screamin' Eagle Nightstick 2-Into-1 Slip-On Muffler

Part Number 64900137


Finish / Color: Jet Black



Experience the dark side. Street Performance one piece touring mufflers feature an aggressive exhaust note, high flowing internals to maximize performance, and a unique black ceramic coating, unmatched for durability.

  • Jet black finish
  • High-flow design of external diffusion discs produces plenty of low-end "guts"
  • Flared opening
  • Domed end cap
  • Easy to install
  • 50-State U.S. EPA compliant
  • Mufflers are street legal on stock displacement engines

Fits '12-'16 FLD models. All models require ECM calibration for proper installation.

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  • Model
  • These Screamin' Eagle® products are 50-state street-legal for sale and use on all vehicles, including those that are pollution controlled. Complies with the requirements of 40 CFR Part 86, subparts E and F.


There is no warranty on exhaust pipes and mufflers with regard to any discoloration. Blueing is caused by tuning characteristics, cam timing, carburetor jetting, over-heating, etc. and is not caused by defective manufacturing.

  • Material Content

  • Warranty

    1 year limited warranty – Go to for full details
  • Requires ECM Calibration

  • Sold in Unit

  • In The Box

    Muffler only
  • Upgrade Stage Level

    Stage I
Nightstick 2-Into-1 Slip-On Muffler is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from Nice sound. Sounds very good for just a slip-on. I like they way it looks, also. The instructions were very easy to read, and the muffler went on the bike in about 15 minutes. Glad I purchased it.
Date published: 2017-07-23
  • y_2018, m_2, d_26, h_20
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.7
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_1
  • loc_en_US, sid_PA-06-64900137, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_harleydavidson

After installation maintenance

After putting on the night stick will there be anymore additional maintenance. Like tuning the bike to accommodate the added flow or instillation of a high flow filter?
Asked by: Mott77
  • y_2018, m_2, d_26, h_20CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.7
  • cp_1, bvpage1
  • co_hasquestions, tq_1
  • loc_en_US, sid_PA-06-64900137, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_harleydavidson

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    Prices listed are generally the Manufacturer's Suggested Retail Price (MSRP), excluding taxes and shipping. Prices at local dealerships may vary. All online orders will be fulfilled and shipped by
    Harley-Davidson Motor Company as the agent for the Selling Dealer.