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Black Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1024SB

  • Part #:
    4408739
  • Mfg Part #:
    1024SB
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Black Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1024SB

  • Part #:
    4408739
  • Mfg Part #:
    1024SB
MSRP: $1,109.00

Price: $998.10 10% off!
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Thunderheader Black Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1024SB
  • 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 head pipe assembly with heat shields

(1) Black heat shield

(1) Black muffler assembly

(1) Black steel mounting bracket

(1) Black steel 1-3/4" Pinch clamp

(1) 2-5/8" Black exhaust clamp

(1) Black hose clamp # 56

(2) Black hose clamps # 40

(6) Black hose clamps # 24

(1) 5/16"-18 x 1-1/2" Hex head bolt

(2) 5/16"-18 x 1" Hex head bolt

(6) 5/16" Flat washers

(1) 5/16" Split lock washer

(1) 5/16"-18 Hex nut

(2) 5/16"-18 Nylock nuts

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 #: 4408739
Mfg #: 1024SB
Color Black
Style Straight-Cut Tip
Type 2-Into-1 System
Units Each
Weight 24.39 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 - 1024SB

Part 4408739 fits the following machines

Harley-Davidson
  • Electra Glide - FLH 1984-1985
  • Electra Glide - FLHT 1985-1987
  • Electra Glide Classic - FLHTC 1984-2005
  • Electra Glide Classic - FLHTC (Early Model) 1984
  • Electra Glide Classic Injected - FLHTC I 1996-2006
  • Electra Glide Injected CVO/SE - FLHTCSE 2004
  • Electra Glide Injected CVO/SE - FLHTCSE 2 2005
  • Electra Glide Special - FLHX 1984-1985
  • Electra Glide Sport - FLHS 1984, 1987-1993
  • Electra Glide Standard - FLHT 1995-2006
  • Electra Glide Standard Injected - FLHT I 2003-2006
  • Electra Glide Ultra Classic - FLHTCU 1989-1997
  • Electra Glide Ultra Classic Injected - FLHTCU I 1995-2006
  • Road Glide - FLTR 1998-2002
  • Road Glide Injected - FLTR I 1998-2006
  • Road Glide Injected CVO/SE - FLTRSE I 2000
  • Road Glide Injected CVO/SE - FLTRSE I 2 2001
  • Road King - FLHR 1994-2006
  • Road King Classic Injected - FLHRC I 1998-2006
  • Road King Custom - FLHRS 2004-2006
  • Road King Custom Injected - FLHRS I 2004-2006
  • Road King Injected - FLHR I 1996-2006
  • Road King Injected CVO/SE - FLHRSE I 2002
  • Road King Injected CVO/SE - FLHRSE I 2 2003
  • Street Glide - FLHX 2006
  • Street Glide Injected - FLHX I 2006
  • Tour Glide Classic - FLTC 1985-1991
  • Tour Glide Classic - FLTC (Early Model) 1984
  • Tour Glide Classic - FLTC (Late Model) 1984
  • Tour Glide Ultra Classic - FLTCU 1989-1995
  • Tour Glide Ultra Classic Injected - FLTCU I 1996

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Reviews & Questions
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Browse 7 questions Browse 7 questions and 7 answers
will this fit properly on my 2006 roadglide and does the length end at the rear of my saddlebag?
Rodney J on Jun 15, 2020
BEST ANSWER: Yes these will fit and are the long style so they should end at the rear of your saddlebags
Will this thunderheader fit my 2008 street glide FLHX ?
A shopper on Oct 9, 2019
BEST ANSWER: No, see fitment tab for correct fits
will this fit my 1996 electra glide standard i have a evo gen one carb motor?
A shopper on Jun 21, 2019
BEST ANSWER: Yes
Well this work on twin Cam?. and s&s carb .is it great for truning?
A shopper on Oct 10, 2018
BEST ANSWER: I used this on my fuel injected 2005 TC88 along with a Roland Sands air cleaner and a Power Commander tuner
I have a 93 FLHTP will this fit?
A shopper on Aug 1, 2018
BEST ANSWER: Yes
Will this fit a 1987 FLH with a kick start?
A shopper on Feb 2, 2018
BEST ANSWER: No
My bike is a 2000 police road King. Will this still fit?
A shopper on Sep 20, 2017
BEST ANSWER: Yes it should
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