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Black True Dual Headpipes - 6257RB

  • Part #:
    4409956
  • Mfg Part #:
    6257RB
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Black True Dual Headpipes - 6257RB

  • Part #:
    4409956
  • Mfg Part #:
    6257RB
MSRP: $549.99

Price: $423.49 23% off!
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Cobra Black True Dual Headpipes - 6257RB
  • Dual headpipes taken to a whole new level
  • PowerPort crossover provides power boost across entire rpm range
  • Dual pipe styling with 2-into-1 performance
  • Dual bung headpipes feature 12mm and 18mm bungs for easier tuning set up and include installed 18mm bung plugs with copper sealing washers (09 models will require 12mm bung plugs (sold separately))
  • 2.5" heat shields
  • Quick, simple installation
  • Accepts aftermarket 17-20 specific mufflers
  • 17-20 style headers accept aftermarket 17-20 specific mufflers

  • 99-08 headers accept Cobra slip-on mufflers or any 95-16 OEM-style mufflers

  • Made in the U.S.A.

 

NOTE: Mufflers not included; must be purchased separately.

 



Included Items:

(1) Chrome steel front head pipe W/black steel heat shield

(1) Chrome steel rear head pipe W/black steel heat shield

(1) Chrome steel left rear crossover W/black steel head shield

(1) Black steel front head pipe support bracket

(1) Black steel cross over pipe support bracket

(1) Floor board mount spacer plate

(1) Front head pipe support top pinch clamp

(1) Front head pipe support bottom pinch clamp

(8) #24 Hose clamps

(1) #36 Hose clamp

(2) 5/16"-18 x 5/8" Hex flange bolts

(1) 3/8" Thick washer

(2) 1/4"-20 x 5/8" Allen bolts

(1) 3/8" Thin washer

(2) 1/4" Flat washers

(1) 3/8"-16 x 1" Carriage bolt

(1) #27-61 Clamp

(1) 3/8" Nylock nut

Instructions



The Air Resources Board (ARB) does not permit the use of aftermarket emission-related parts that alter the air/fuel ratio of an emission-controlled vehicle. Due to these legal restrictions this part cannot be shipped to California.

Specifications
Part #: 4409956
Mfg #: 6257RB
Color Black
Type Head Pipe
Units Set
Weight 27.55 lbs
Resources & Manuals
Fitment for Cobra Black True Dual Headpipes - 6257RB

Part 4409956 fits the following machines

Harley-Davidson
  • Electra Glide Police - FLHTP 2017-2018
  • Electra Glide Standard - FLHT 2019-2020
  • Electra Glide Ultra Classic - FLHTCU 2017-2019
  • Electra Glide Ultra Limited - FLHTK 2017-2020
  • Electra Glide Ultra Limited CVO/SE - FLHTKSE 2017-2020
  • Electra Glide Ultra Limited Low - FLHTKL 2017-2019
  • Road Glide - FLTRX 2017-2020
  • Road Glide CVO/SE - FLTRXSE 2018-2019
  • Road Glide Limited - FLTRK 2020
  • Road Glide Special - FLTRXS 2017-2020
  • Road Glide Ultra - FLTRU 2017-2019
  • Road King - FLHR 2017-2020
  • Road King Special - FLHRXS 2017-2020
  • Street Glide - FLHX 2017-2020
  • Street Glide CVO/SE - FLHXSE 2017-2020
  • Street Glide Special - FLHXS 2017-2020

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Reviews & Questions
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Browse 4 questions Browse 4 questions and 5 answers
Are these True Duel different or better than Cobra Powerport Headpipes?
A shopper on May 20, 2020
BEST ANSWER: The power port is to make the pipes act like a 2 into 1 for a little more bottom end
The description says this will fit my 18 road glide. But it also says that it fits 06 to 10 slip ons. Just want to make sure this will fit my bike?
Kojak on Apr 24, 2019
BEST ANSWER: Fits 2017 and newer aftermarket slip on mufflers (with different sizes inlets). Does not work with oem/Screamin Eagle mufflers due to muffler inlet design.
Will this void the warranty on the Milwaukee 8?
A shopper on Apr 22, 2019
BEST ANSWER: It shouldn't, but check with your dealer
When are they likely to come into stock ? And do you ship to Australia ?
Lover on Apr 8, 2019
BEST ANSWER: We usually get new stock within 30 days unless you put it on back order which will expedite the process (usually 7-10 days).
5.0 / 5.0
5 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
5
0
0
0
0
Finish
4.6 / 5
Fit
5.0 / 5
Performance
4.8 / 5
Styling
4.6 / 5
Value
4.6 / 5
Would you recommend this product?
Yes (5)
Finish
5 / 5
Fit
5 / 5
Performance
4 / 5
Styling
5 / 5
Value
5 / 5
Would you recommend this product?
Yes
Help you M8 motor sound better!
The quality of these headpipes is very good. They fit well and are pretty easy to install. The headpipe has both 12mm and 18mm oxygen sensor ports. This headpipe is true duals and doesn't have a crossover. I installed them on my 2018 Roadking Special with S&S Grand Nationals slip ons. This combo sounds off pretty well when accelerating and decelerating but not too bad when cruising.
Some people worry about True Duals causing a loss of torque, but I really haven't noticed it.
These pipes definitely make the m8 motor sound better!
June 20, 2019
Rowlesburg , WV
Purchased
1 year ago
Ride:
2018 Roadking Special
Finish
5 / 5
Fit
5 / 5
Performance
5 / 5
Styling
5 / 5
Value
5 / 5
Would you recommend this product?
Yes
Cobra true duals perfect fit, sound great look great!
Perfect fit on my 2020 Road Glide Special. Took about 1 hour and everything fit perfectly. Would highly recommend!
December 15, 2019
San Angelo, TX
Purchased
8 months ago
Ride:
2020 Road Glide Special
Finish
3 / 5
Fit
5 / 5
Performance
5 / 5
Styling
3 / 5
Value
3 / 5
Would you recommend this product?
Yes
They’re good quality for the price.
April 18, 2019
Purchased
1 year ago
Finish
5 / 5
Fit
5 / 5
Performance
5 / 5
Styling
5 / 5
Value
5 / 5
Would you recommend this product?
Yes
Cobra Black True Dual Head Pipes for 2017 & Up Harley-Davidson
High quality very easy to install
April 9, 2020
Fort Myers Beach, FL
Purchased
4 months ago
Ride:
2020 Road Glide Special FLTRXS
Finish
5 / 5
Fit
5 / 5
Performance
5 / 5
Styling
5 / 5
Value
5 / 5
Would you recommend this product?
Yes
Very easy to install and look and sound great
July 30, 2020
Lehigh Acres, FL
Purchased
3 weeks ago
Ride:
2019 Street Glide Special