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Thunderheader Black 2-into-1 High Performance Exhaust System - 1027B

  • Part #:
    4407263
  • Manufacturer Part #:
    1027B

MSRP Price: $772.00

Our Price: $694.80

You Save:
$77.20 (10%)
2 on Hand

Overview of Thunderheader Black 2-into-1 High Performance Exhaust System - 1027B

  • 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
  • For heat shields, full coverage set of 3, order PART NO. 25-1727


Included Items:
(1) Black 2-into-1 head pipe muffler assembly with non removable baffle
(1) Black steel mounting bracket
(1) 3/8 in.-16 x 3/4 in. hex head bolt
(4) 5/16 in. flat washers
(2) 3/8 in. flat washers
(2) 5/16 in.-18 nut
(2) 5/16 in.-18 x 1 1/4 in. hex head bolts
Instructions

Not all products are legal for sale or use on pollution controlled vehicles. Check your local laws and the manufacturers information

There is no warranty on exhaust pipes and mufflers with regard to any discoloration. Discoloration (bluing) is the result of tuning characteristics, cam timing, carburetor jetting, overheating, etc., and is not caused by defective manufacturing. See the CHEMS/LUBES section for products that will help prevent or remove bluing.

Installation of a new exhaust system may change your motorcycles fuel-air mixture requirements. Please consult the exhaust manufacturer directly with questions regarding any modifications that may need to be made during, or after, installing their product. If a jet kit or fuel processor is recommended, see the FUEL/INTAKE section

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 2-into-1 High Performance Exhaust System - 1027B

Color - Primary Black
Style Tapered Tip
Type 2-Into-1 System
Units Each
Weight 18.10 lbs

Specs for Thunderheader Black 2-into-1 High Performance Exhaust System - 1027B

Color - Primary Black
Style Tapered Tip
Type 2-Into-1 System
Units Each
Weight 18.10 lbs

Fitment for Thunderheader Black 2-into-1 High Performance Exhaust System - 1027B

See if this part fits your ride

Part 4407263 fits the following machines

Harley-Davidson
  • 2006 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2005 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2004 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2003 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2002 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2001 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2000 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2006 Harley-Davidson Heritage Softail Classic Injected - FLSTC I
  • 2005 Harley-Davidson Heritage Softail Classic Injected - FLSTC I
  • 2004 Harley-Davidson Heritage Softail Classic Injected - FLSTC I
  • 2003 Harley-Davidson Heritage Softail Classic Injected - FLSTC I
  • 2002 Harley-Davidson Heritage Softail Classic Injected - FLSTC I
  • 2001 Harley-Davidson Heritage Softail Classic Injected - FLSTC I
  • 2003 Harley-Davidson Heritage Softail Springer - FLSTS
  • 2002 Harley-Davidson Heritage Softail Springer - FLSTS
  • 2001 Harley-Davidson Heritage Softail Springer - FLSTS
  • 2000 Harley-Davidson Heritage Softail Springer - FLSTS
  • 2003 Harley-Davidson Heritage Softail Springer Injected - FLSTS I
  • 2002 Harley-Davidson Heritage Softail Springer Injected - FLSTS I
  • 2001 Harley-Davidson Heritage Softail Springer Injected - FLSTS I
  • 2006 Harley-Davidson Softail Deluxe - FLSTN
  • 2005 Harley-Davidson Softail Deluxe - FLSTN
  • 2006 Harley-Davidson Softail Deluxe Injected - FLSTN I
  • 2005 Harley-Davidson Softail Deluxe Injected - FLSTN I
  • 2006 Harley-Davidson Softail Deuce - FXSTD
  • 2005 Harley-Davidson Softail Deuce - FXSTD
  • 2004 Harley-Davidson Softail Deuce - FXSTD
  • 2003 Harley-Davidson Softail Deuce - FXSTD
  • 2002 Harley-Davidson Softail Deuce - FXSTD
  • 2001 Harley-Davidson Softail Deuce - FXSTD
  • 2000 Harley-Davidson Softail Deuce - FXSTD
  • 2006 Harley-Davidson Softail Deuce Injected - FXSTD I
  • 2005 Harley-Davidson Softail Deuce Injected - FXSTD I
  • 2004 Harley-Davidson Softail Deuce Injected - FXSTD I
  • 2003 Harley-Davidson Softail Deuce Injected - FXSTD I
  • 2002 Harley-Davidson Softail Deuce Injected - FXSTD I
  • 2001 Harley-Davidson Softail Deuce Injected - FXSTD I
  • 2006 Harley-Davidson Softail Fat Boy - FLSTF
  • 2005 Harley-Davidson Softail Fat Boy - FLSTF
  • 2004 Harley-Davidson Softail Fat Boy - FLSTF
  • 2003 Harley-Davidson Softail Fat Boy - FLSTF
  • 2002 Harley-Davidson Softail Fat Boy - FLSTF
  • 2001 Harley-Davidson Softail Fat Boy - FLSTF
  • 2000 Harley-Davidson Softail Fat Boy - FLSTF
  • 2006 Harley-Davidson Softail Fat Boy Injected - FLSTF I
  • 2005 Harley-Davidson Softail Fat Boy Injected - FLSTF I
  • 2004 Harley-Davidson Softail Fat Boy Injected - FLSTF I
  • 2003 Harley-Davidson Softail Fat Boy Injected - FLSTF I
  • 2002 Harley-Davidson Softail Fat Boy Injected - FLSTF I
  • 2001 Harley-Davidson Softail Fat Boy Injected - FLSTF I
  • 2006 Harley-Davidson Softail Night Train - FXSTB
  • 2005 Harley-Davidson Softail Night Train - FXSTB
  • 2004 Harley-Davidson Softail Night Train - FXSTB
  • 2003 Harley-Davidson Softail Night Train - FXSTB
  • 2002 Harley-Davidson Softail Night Train - FXSTB
  • 2001 Harley-Davidson Softail Night Train - FXSTB
  • 2000 Harley-Davidson Softail Night Train - FXSTB
  • 2006 Harley-Davidson Softail Night Train Injected - FXSTB I
  • 2005 Harley-Davidson Softail Night Train Injected - FXSTB I
  • 2004 Harley-Davidson Softail Night Train Injected - FXSTB I
  • 2003 Harley-Davidson Softail Night Train Injected - FXSTB I
  • 2002 Harley-Davidson Softail Night Train Injected - FXSTB I
  • 2001 Harley-Davidson Softail Night Train Injected - FXSTB I
  • 2006 Harley-Davidson Softail Springer - FXSTS
  • 2005 Harley-Davidson Softail Springer - FXSTS
  • 2004 Harley-Davidson Softail Springer - FXSTS
  • 2003 Harley-Davidson Softail Springer - FXSTS
  • 2002 Harley-Davidson Softail Springer - FXSTS
  • 2001 Harley-Davidson Softail Springer - FXSTS
  • 2000 Harley-Davidson Softail Springer - FXSTS
  • 2006 Harley-Davidson Softail Springer Classic - FLSTSC
  • 2005 Harley-Davidson Softail Springer Classic - FLSTSC
  • 2006 Harley-Davidson Softail Springer Classic Injected - FLSTSC I
  • 2005 Harley-Davidson Softail Springer Classic Injected - FLSTSC I
  • 2006 Harley-Davidson Softail Springer Injected - FXSTS I
  • 2005 Harley-Davidson Softail Springer Injected - FXSTS I
  • 2004 Harley-Davidson Softail Springer Injected - FXSTS I
  • 2003 Harley-Davidson Softail Springer Injected - FXSTS I
  • 2002 Harley-Davidson Softail Springer Injected - FXSTS I
  • 2001 Harley-Davidson Softail Springer Injected - FXSTS I
  • 2006 Harley-Davidson Softail Standard - FXST
  • 2005 Harley-Davidson Softail Standard - FXST
  • 2004 Harley-Davidson Softail Standard - FXST
  • 2003 Harley-Davidson Softail Standard - FXST
  • 2002 Harley-Davidson Softail Standard - FXST
  • 2001 Harley-Davidson Softail Standard - FXST
  • 2000 Harley-Davidson Softail Standard - FXST
  • 2006 Harley-Davidson Softail Standard Injected - FXST I
  • 2005 Harley-Davidson Softail Standard Injected - FXST I
  • 2004 Harley-Davidson Softail Standard Injected - FXST I
  • 2003 Harley-Davidson Softail Standard Injected - FXST I
  • 2002 Harley-Davidson Softail Standard Injected - FXST I
  • 2001 Harley-Davidson Softail Standard Injected - FXST I
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Browse 4 questions Browse 4 questions and 4 answers
does this part fit with forward controls?
jesse on Apr 6, 2017
BEST ANSWER: yes
Will this fit a 2016 fxdls ?
Arthur H on Nov 14, 2016
BEST ANSWER: No. It is not on our fitment chart.
Does this pipe come w a catalytic convertor...?????
Arthur H on Nov 14, 2016
BEST ANSWER: I cannot locate the answer to that question, I recommend contacting Thunderheader for accurate information on this inquiry:

http://www.thunderheader.net/contact.php
Will this fit 08 street glide 96ci?
A shopper on Aug 5, 2016
BEST ANSWER: NO, this is for a Softail. For an 08 Streetglide you would need part number 44-07266

Instructions and Manuals for Thunderheader Black 2-into-1 High Performance Exhaust System - 1027B

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