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Vance & Hines Dresser Duals Exhaust Black

J&P Cycles Part Number: 921-646

Manufacturer Part Number: 47651

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Description for Vance & Hines Dresser Duals Exhaust Black

Return to your Harley-Davidson's roots with Dresser Duals Exhaust by Vance & Hines. These 1-3/4" head pipes will give your Milwaukee Eight Touring motorcycle a throatier growl while the 2-1/8" 220° full-coverage heat shields keeps your pipes from turning blue. These Dresser Duals can be paired with any Vance & Hines or stock slip-on mufflers (sold separately). You can also order them in chrome 921-645 for a totally different look. Either way, the classic true dual design will be significant upgrade to your bike's looks, sound, and performance at a great price.

• Head-turning appearance, plus a noticeable improvement in performance and sound

• Full-coverage heat shields

• Compatible with any Vance & Hines or stock slip-on mufflers (sold separately).

• Ported for O2 sensors. Pre-2007 Harley-Davidson models will also need O2 sensor plugs 443-405, sold separately

• Metal exhaust port gaskets are not shipped with these Dresser Duals, and must be purchased separately 4400281

• Purchase of the Vance & Hines Fuelpak (or Fuelpak FP3 for 2007 and later models) is recommended by Vance & Hines when installing their Dresser Duals on engines with electronic fuel injection

Product Specs

Product Specs for Vance & Hines Dresser Duals Exhaust Black

Exhaust System:
Head Pipe Color:
Head Pipe Finish:
Head Pipe Material:
Stainless Steel
Heat Shield:
Manufacturer Part Number:
O2 Sensor Adapters:
O2 Sensor Plugs:
Not Included
O2 Sensor Size:
12mm and 18mm
Sold in Units:
Warehouse Part Number:
Fitment Questions?

With over 750 years of experience combined, our tech staff has the answers!

Compatible Models

Harley-Davidson® Models

  • Touring Electra Glide Police FLHTP : 2017–2020
  • Touring Electra Glide Standard FLHT : 2019–2020
  • Touring Electra Glide Ultra Classic FLHTCU : 2017–2019
  • Touring Road Glide CVO FLTRXSE : 2018–2019
  • Touring Road Glide FLTRX : 2017–2020
  • Touring Road Glide Limited FLTRK : 2020
  • Touring Road Glide Special FLTRXS : 2017–2020
  • Touring Road Glide Ultra FLTRU : 2017–2019
  • Touring Road King FLHR : 2017–2020
  • Touring Road King Police FLHP : 2017–2020
  • Touring Road King Special FLHRXS : 2017–2020
  • Touring Street Glide Anniversary FLHX : 2018
  • Touring Street Glide CVO FLHXSE : 2017–2020
  • Touring Street Glide FLHX : 2017–2020
  • Touring Street Glide Special Anniversary FLHXS : 2018
  • Touring Street Glide Special FLHXS : 2017–2020
  • Touring Ultra Limited Anniversary FLHTK : 2018
  • Touring Ultra Limited CVO Anniversary FLHTKSE : 2018
  • Touring Ultra Limited CVO FLHTKSE : 2017–2020
  • Touring Ultra Limited FLHTK : 2017–2020
  • Touring Ultra Limited Low FLHTKL : 2017–2019
Customer Reviews

Customer Reviews for Vance & Hines Dresser Duals Exhaust Black

Overall Rating

5 out of 5 stars (based on 11 reviews)

5 stars (11)

4 stars (0)

3 stars (0)

2 stars (0)

1 star (0)

0 stars (0)

DOUG on 8/21/2019

I absolutely love these Head pipes the fit and finish Are almost perfect I receive them in a timely manner couldn’t be happier

AARON on 5/5/2019


AARON on 5/5/2019


banjowacs on 3/1/2019

5 Star

trod007 on 3/1/2019

5 Star

mdb0084 on 3/1/2019

5 Star

Kmarek13 on 3/1/2019

5 Star

Mikea46323 on 5/29/2018

If you want your M8 to sound like an Old School Harley this is the way to go. Install was straight forward. Instantly lowered my temps, can feel the performance increase. Great pipes. Paired mine with 400 Eliminator slip ons.

bjy67 on 6/6/2014

nice pipes, big improvement with heat and sounds good too, well worth the money

navyrote45 on 11/13/2013

Quick shipping, easy and straight forward install. But wow, the appearance, while subtle, still gets that head turning response we all want. Added the black widow slips ons to complete the line and color. Sounds and responds great on my ultra.

Instructions & Manuals
Important Product Notes

Note: Please see U.S. EPA and your respective state and local regulations to confirm noise and emission compliance.

Important Exhaust Notes:

• Note: With any new exhaust, we recommend changes to carburetor jetting or use of an aftermarket fuel injection control module.

• There is no warranty on exhaust pipes and mufflers with regard to any discoloration. Blueing is caused by tuning characteristics, cam timing, carburetor jetting, overheating, etc. and is not caused by defective manufacturing. No refunds on exhaust pipes once motorcycle is started unless there’s a manufacturer’s defect.

• Flanges and retaining rings are not included with most aftermarket exhaust for 1984-2013 Evolution and Twin Cam models. Re-use your existing hardware, or purchase replacement hardware.

Shipping Note

Due to state regulations we cannot ship this item to the state of California.

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