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Thunderheader Black X-Series Exhaust System - 1074XB

  • Part #:
    4407266
  • Manufacturer Part #:
    1074XB

MSRP Price: $1,364.00

Our Price: $1,227.60

You Save:
$136.40 (10%)
2 on Hand

Overview of Thunderheader Black X-Series Exhaust System - 1074XB

  • The new Thunderheader™ X-Series™ for Touring is our large diameter exhaust specifically designed for big cubic inch engines, built to produce big numbers
  • The X-Series™ is designed with 2 in. primary tubes with a 12 degree transition chamber to allow more exhaust flow
  • Unique patented baffle in conjunction with the trademark tail cone is designed to allow a free flowing exhaust while creating an anti reversion condition in the pipe which will aid the air/fuel flow on the intake stroke to allow more fuel into the combustion chamber
  • This means more torque at the low and mid RPM ranges and maximum horsepower at top end
  • The X-Series™ comes complete with heat shields and all mounting hardware, and bungs for both 12mm and 18mm O2 sensors
  • O2 sensor ports are pre-installed with O2 sensor plugs


NOTE: Also fits:
FLHRSE4 07-08
FLTRSE3 09
FLHTCUSE4 09



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



Included Items:

(1) Black steel 2 into 1 header assembly W? chrome steel heat shields installed

(1) Black steel muffler assembly

(1) Black steel muffler heat shield

(11) #28 Hose clamps

(1) #48 Hose clamp

(1) #56 Hose clamp

(1) Band clamp

(1) 5/16"-18 x 3/4" Hex head bolt

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

(1) 5/16"-18 Nylock nut

(1) 5/16"-18 Hex nut

(3) 5/16" Flat washers

(1) Black steel mounting bracket

(1) Black steel square spacer

(2) Black aluminum round spacers

(2) 3/8"-16 s 3" Socket cap head bolts

(2) 3/8"-16 x 1-3/4" Socket cap head bolts

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 X-Series Exhaust System - 1074XB

Color - Primary Black
Style Tapered Tip
Type 2-Into-1 System
Units Each
Weight 31.10 lbs

Specs for Thunderheader Black X-Series Exhaust System - 1074XB

Color - Primary Black
Style Tapered Tip
Type 2-Into-1 System
Units Each
Weight 31.10 lbs

Fitment for Thunderheader Black X-Series Exhaust System - 1074XB

See if this part fits your ride

Part 4407266 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
  • 2009 Harley-Davidson Electra Glide Classic - FLHTC
  • 2005 Harley-Davidson Electra Glide Classic - FLHTC
  • 2004 Harley-Davidson Electra Glide Classic - FLHTC
  • 2003 Harley-Davidson Electra Glide Classic - FLHTC
  • 2002 Harley-Davidson Electra Glide Classic - FLHTC
  • 2001 Harley-Davidson Electra Glide Classic - FLHTC
  • 2000 Harley-Davidson Electra Glide Classic - FLHTC
  • 1999 Harley-Davidson Electra Glide Classic - FLHTC
  • 2008 Harley-Davidson Electra Glide Classic (EFI) - FLHTC
  • 2007 Harley-Davidson Electra Glide Classic (EFI) - FLHTC
  • 2006 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 2005 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 2004 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 2003 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 2002 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 2001 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 2000 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 1999 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 2009 Harley-Davidson Electra Glide Standard - FLHT
  • 2006 Harley-Davidson Electra Glide Standard - FLHT
  • 2005 Harley-Davidson Electra Glide Standard - FLHT
  • 2004 Harley-Davidson Electra Glide Standard - FLHT
  • 2003 Harley-Davidson Electra Glide Standard - FLHT
  • 2002 Harley-Davidson Electra Glide Standard - FLHT
  • 2001 Harley-Davidson Electra Glide Standard - FLHT
  • 2000 Harley-Davidson Electra Glide Standard - FLHT
  • 1999 Harley-Davidson Electra Glide Standard - FLHT
  • 2008 Harley-Davidson Electra Glide Standard (EFI) - FLHT
  • 2007 Harley-Davidson Electra Glide Standard (EFI) - FLHT
  • 2006 Harley-Davidson Electra Glide Standard Injected - FLHT I
  • 2005 Harley-Davidson Electra Glide Standard Injected - FLHT I
  • 2004 Harley-Davidson Electra Glide Standard Injected - FLHT I
  • 2003 Harley-Davidson Electra Glide Standard Injected - FLHT I
  • 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
  • 2009 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1999 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2008 Harley-Davidson Electra Glide Ultra Classic (EFI) - FLHTCU
  • 2007 Harley-Davidson Electra Glide Ultra Classic (EFI) - FLHTCU
  • 2006 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 2005 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 2004 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 2003 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 2002 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 2001 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 2000 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 1999 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 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
  • 2009 Harley-Davidson Road Glide - FLTR
  • 2002 Harley-Davidson Road Glide - FLTR
  • 2001 Harley-Davidson Road Glide - FLTR
  • 2000 Harley-Davidson Road Glide - FLTR
  • 1999 Harley-Davidson Road Glide - FLTR
  • 2008 Harley-Davidson Road Glide (EFI) - FLTR
  • 2007 Harley-Davidson Road Glide (EFI) - FLTR
  • 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
  • 2006 Harley-Davidson Road Glide Injected - FLTR I
  • 2005 Harley-Davidson Road Glide Injected - FLTR I
  • 2004 Harley-Davidson Road Glide Injected - FLTR I
  • 2003 Harley-Davidson Road Glide Injected - FLTR I
  • 2002 Harley-Davidson Road Glide Injected - FLTR I
  • 2001 Harley-Davidson Road Glide Injected - FLTR I
  • 2000 Harley-Davidson Road Glide Injected - FLTR I
  • 1999 Harley-Davidson Road Glide Injected - FLTR I
  • 2013 Harley-Davidson Road Glide Ultra - FLTRU
  • 2012 Harley-Davidson Road Glide Ultra - FLTRU
  • 2011 Harley-Davidson Road Glide Ultra - FLTRU
  • 2013 Harley-Davidson Road King - FLHR
  • 2012 Harley-Davidson Road King - FLHR
  • 2011 Harley-Davidson Road King - FLHR
  • 2010 Harley-Davidson Road King - FLHR
  • 2009 Harley-Davidson Road King - FLHR
  • 2006 Harley-Davidson Road King - FLHR
  • 2005 Harley-Davidson Road King - FLHR
  • 2004 Harley-Davidson Road King - FLHR
  • 2003 Harley-Davidson Road King - FLHR
  • 2002 Harley-Davidson Road King - FLHR
  • 2001 Harley-Davidson Road King - FLHR
  • 2000 Harley-Davidson Road King - FLHR
  • 1999 Harley-Davidson Road King - FLHR
  • 2008 Harley-Davidson Road King (EFI) - FLHR
  • 2007 Harley-Davidson Road King (EFI) - 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
  • 2009 Harley-Davidson Road King Classic - FLHRC
  • 2008 Harley-Davidson Road King Classic (EFI) - FLHRC
  • 2007 Harley-Davidson Road King Classic (EFI) - FLHRC
  • 2006 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2005 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2004 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2003 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2002 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2001 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2000 Harley-Davidson Road King Classic Injected - FLHRC I
  • 1999 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2006 Harley-Davidson Road King Custom - FLHRS
  • 2005 Harley-Davidson Road King Custom - FLHRS
  • 2004 Harley-Davidson Road King Custom - FLHRS
  • 2007 Harley-Davidson Road King Custom (EFI) - FLHRS
  • 2006 Harley-Davidson Road King Custom Injected - FLHRS I
  • 2005 Harley-Davidson Road King Custom Injected - FLHRS I
  • 2004 Harley-Davidson Road King Custom Injected - FLHRS I
  • 2006 Harley-Davidson Road King Injected - FLHR I
  • 2005 Harley-Davidson Road King Injected - FLHR I
  • 2004 Harley-Davidson Road King Injected - FLHR I
  • 2003 Harley-Davidson Road King Injected - FLHR I
  • 2002 Harley-Davidson Road King Injected - FLHR I
  • 2001 Harley-Davidson Road King Injected - FLHR I
  • 2000 Harley-Davidson Road King Injected - FLHR I
  • 1999 Harley-Davidson Road King Injected - FLHR I
  • 2010 Harley-Davidson Screamin' Eagle Electra Glide Ultra Classic - FLHTCUSE 5
  • 2010 Harley-Davidson Screamin' Eagle Street Glide - FLHXSE
  • 2013 Harley-Davidson Street Glide - FLHX
  • 2012 Harley-Davidson Street Glide - FLHX
  • 2011 Harley-Davidson Street Glide - FLHX
  • 2009 Harley-Davidson Street Glide - FLHX
  • 2006 Harley-Davidson Street Glide - FLHX
  • 2008 Harley-Davidson Street Glide (EFI) - FLHX
  • 2007 Harley-Davidson Street Glide (EFI) - FLHX
  • 2006 Harley-Davidson Street Glide Injected - FLHX I
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Instructions and Manuals for Thunderheader Black X-Series Exhaust System - 1074XB

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