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Black Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1074SB

  • Part #:
    4408744
  • Mfg Part #:
    1074SB
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Black Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1074SB

  • Part #:
    4408744
  • Mfg Part #:
    1074SB
MSRP: $1,165.00

Price: $1048.50 10% off!
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Thunderheader Black Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1074SB
  • Designed to give maximum horsepower without sacrificing low-end torque
  • 2-into-1 systems with patented collector design that directs spent exhaust gases in a spiral motion through four acoustical damping chambers
  • Exhaust travels through these chambers at high velocity to scavenge spent exhaust gases from the combustion chamber and bring in a fresh charge of air/fuel mixture
  • Anti-reversion design works to impede reverse flow through the system -- reverse flow can contaminate the incoming fuel/air mixture, which reduces performance and throttle response
  • As reverse flow enters the collector, the diffuser deflects it through vents; the pyramidal trap and apertures impede the reverse flow, allowing time for the exhaust valve to close
  • Flow director has equal area at each end, allowing exhaust gases to travel at a constant velocity over the entire length to improve exhaust scavenging
  • Includes a set of full-coverage heat shields


Included Items:

(1) Black steel 2 into 1 head pipe assembly

(1) Black steel muffler/mid-pipe assembly

(1) Black steel mid-pipe heat shield

(1) Black steel front head pipe heat shield

(1) Black steel rear head pipe heat shield

(1) 3-7/8" Black hose clamp

(3) 2-3/4" Black hose clamps

(6) 2" Black hose clamps

(1) Black exhaust clamp

(1) Black clamp

(1) Black steel mounting bracket

(1) 1/2" Wide black aluminum spacer

(1) 1/2" Wide black steel floorboard spacer

(1) 3/8"-16 X 3" Black socket head bolt

(2) 3/8"-16 X 1-3/4" Black socket head bolts

(1) 5/16"-18 X 1-1/2" Stainless hex head bolt

(2) 5/16"-18 X 3/4" Stainless hex head bolts

(3) 5/16"-18 Nylock nuts

(5) 5/16" Washers

(1) 5/16" Notched washer

(1) 5/16" Split lock washer

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
Color Black
Mfg #: 1074SB
Part #: 4408744
Style Straight-Cut Tip
Type 2-Into-1 System
Units Each
Weight 25.20 lbs
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Resources & Manuals
Fitment for Thunderheader Black Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1074SB

Part 4408744 fits the following machines

Harley-Davidson
  • Electra Glide Classic - FLHTC 2010-2013
  • Electra Glide Police - FLHTP 2014-2016
  • Electra Glide Ultra Classic - FLHTCU 2010-2016
  • Electra Glide Ultra Classic CVO/SE - FLHTCUSE 5 2010
  • Electra Glide Ultra Classic CVO/SE - FLHTCUSE 6 2011
  • Electra Glide Ultra Classic CVO/SE - FLHTCUSE 7 2012
  • Electra Glide Ultra Classic CVO/SE - FLHTCUSE 8 2013
  • Electra Glide Ultra Classic Low - FLHTCUL 2016
  • Electra Glide Ultra Limited - FLHTK 2010-2016
  • Electra Glide Ultra Limited CVO/SE - FLHTKSE 2014-2016
  • Electra Glide Ultra Limited Low - FLHTKL 2016
  • Road Glide Custom - FLTRX 2010-2013
  • Road Glide Custom CVO/SE - FLTRXSE 2012
  • Road Glide Custom CVO/SE - FLTRXSE 2 2013
  • Road Glide Ultra - FLTRU 2011-2013, 2016
  • Road Glide Ultra CVO/SE - FLTRUSE 2011, 2015-2016
  • Road King - FLHR 2010-2016
  • Road King Classic - FLHRC 2010-2013
  • Road King CVO/SE - FLHRSE 2014
  • Road King CVO/SE - FLHRSE 5 2013
  • Street Glide - FLHX 2010-2016
  • Street Glide CVO/SE - FLHXSE 2010, 2015-2016
  • Street Glide CVO/SE - FLHXSE 2 2011
  • Street Glide CVO/SE - FLHXSE 3 2012
  • Street Glide Special - FLHXS 2014-2016
Reviews & Questions
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Browse 7 questions Browse 7 questions and 10 answers
Does it fit 2015 road glide special?
Fred G on Oct 5, 2016
BEST ANSWER: I do not show it on the Fitment Chart, please contact our Tech Support for more accurate information 1-800-969-7501
does this fit on a 2016 road glide special?
terry b on Jan 17, 2017
BEST ANSWER: I don't think it will but I'm sure they make them
Will this unit fit FXRP with floor boards?
Sonny R on Jan 18, 2020
BEST ANSWER: No, see fitment tab for correct fits
Ordered a 1074SB thunderheader August 13th... still on back order :/ any idea when you have it in stock??
A shopper on Oct 22, 2019
BEST ANSWER: Manufacturer delay
We usually get new stock within 30 days unless you put it on back order which will expedite the process (usually 7-10 days).
When do you this item will be back in stock?
Mathew D on Oct 7, 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).
I own a 2015 HD Ultra Limited Low FLHTKL, I see this fits the 2015 Ultra Limited FLHTK, will it fit the low also?
KJMason on May 30, 2018
BEST ANSWER: Yes
Is the baffle removable?
A shopper on Jan 17, 2017
BEST ANSWER: No it is not
4.8 / 5.0
4 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
3
1
0
0
0
Finish
4.8 / 5
Fit
4.2 / 5
Performance
5.0 / 5
Styling
5.0 / 5
Value
4.0 / 5
Loudness
Very Quiet
Average
Very Loud
Would you recommend this product?
Yes (4)
Finish
5 / 5
Fit
3 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
5 / 5
Styling
5 / 5
Value
4 / 5
Would you recommend this product?
Yes
incorrect/missing hardware
I would recommend, however, for the price, I shouldn't have had to furnish bolts and washers that were missing
September 17, 2016
Purchased
over 4 years ago
Finish
5 / 5
Fit
4 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
5 / 5
Styling
5 / 5
Value
4 / 5
Would you recommend this product?
Yes
16 street glide black thunderheader!
The head pipe and slip on fit well the tranny bracket works.the floor board spacer is a little smaller than I think it should be(very close to the heat shield). The heat shields don't fit the best if I was to do it again I would probably not run the heat shields because the pipe is already black. The directions could be a little better. But over all I love the pipe! Sounds amazing like nothing iv ever owned! Noticed an increase is low end torque. And watch your leg! It sticks out a little more than a factory head pipe and will seriously burn the hell outa you
June 7, 2017
Purchased
over 3 years ago
Finish
5 / 5
Fit
5 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
5 / 5
Styling
5 / 5
Value
4 / 5
Would you recommend this product?
Yes
Great Pipe!!!
Great experience overall!! Great Pipe with even better sound and performance. A little high on the price but worth it. I used to be a JP cycles customer. I ordered this pipe from them in June and never got it. Cancelled my order with JP and ordered it from DK and got it 3 days later. Thank You.
August 23, 2016
Purchased
over 4 years ago
Finish
4 / 5
Fit
5 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
5 / 5
Styling
5 / 5
Value
4 / 5
Would you recommend this product?
Yes
Sounds amazing
September 15, 2016
Purchased
over 4 years ago