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

  • Part #:
    4408744
  • Manufacturer Part #:
    1074SB

MSRP Price: $1,109.00

Our Price: $998.10

You Save:
$110.90 (10%)
9 on Hand

Overview of 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.

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

Color - Primary Black
Style Straight-Cut Tip
Type 2-Into-1 System
Units Each
Weight 25.20 lbs

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

Color - Primary Black
Style Straight-Cut Tip
Type 2-Into-1 System
Units Each
Weight 25.20 lbs

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

See if this part fits your ride

Part 4408744 fits the following machines

Harley-Davidson
  • 2013 Harley-Davidson Electra Glide Classic - FLHTC
  • 2012 Harley-Davidson Electra Glide Classic - FLHTC
  • 2011 Harley-Davidson Electra Glide Classic - FLHTC
  • 2010 Harley-Davidson Electra Glide Classic - FLHTC
  • 2016 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2015 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2014 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2013 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2012 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2011 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2010 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2016 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2015 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2014 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2013 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2012 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2011 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2010 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2013 Harley-Davidson Road Glide Custom - FLTRX
  • 2012 Harley-Davidson Road Glide Custom - FLTRX
  • 2011 Harley-Davidson Road Glide Custom - FLTRX
  • 2010 Harley-Davidson Road Glide Custom - FLTRX
  • 2016 Harley-Davidson Road Glide Ultra - FLTRU
  • 2013 Harley-Davidson Road Glide Ultra - FLTRU
  • 2012 Harley-Davidson Road Glide Ultra - FLTRU
  • 2011 Harley-Davidson Road Glide Ultra - FLTRU
  • 2016 Harley-Davidson Road King - FLHR
  • 2015 Harley-Davidson Road King - FLHR
  • 2014 Harley-Davidson Road King - FLHR
  • 2013 Harley-Davidson Road King - FLHR
  • 2012 Harley-Davidson Road King - FLHR
  • 2011 Harley-Davidson Road King - FLHR
  • 2010 Harley-Davidson Road King - FLHR
  • 2013 Harley-Davidson Road King Classic - FLHRC
  • 2012 Harley-Davidson Road King Classic - FLHRC
  • 2011 Harley-Davidson Road King Classic - FLHRC
  • 2010 Harley-Davidson Road King Classic - FLHRC
  • 2010 Harley-Davidson Screamin' Eagle Electra Glide Ultra Classic - FLHTCUSE 5
  • 2010 Harley-Davidson Screamin' Eagle Street Glide - FLHXSE
  • 2016 Harley-Davidson Street Glide - FLHX
  • 2015 Harley-Davidson Street Glide - FLHX
  • 2014 Harley-Davidson Street Glide - FLHX
  • 2013 Harley-Davidson Street Glide - FLHX
  • 2012 Harley-Davidson Street Glide - FLHX
  • 2011 Harley-Davidson Street Glide - FLHX
  • 2010 Harley-Davidson Street Glide - FLHX
  • 2016 Harley-Davidson Street Glide Special - FLHXS
  • 2015 Harley-Davidson Street Glide Special - FLHXS
  • 2014 Harley-Davidson Street Glide Special - FLHXS
4.8 / 5.0
4 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
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
1 year 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
1 year 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
1 year 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
6 months ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 3 questions Browse 3 questions and 6 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
Is the baffle removable?
A shopper on Jan 17, 2017
BEST ANSWER: No it is not

Instructions and Manuals for Thunderheader Black Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1074SB

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