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Black X-Series Exhaust System - 1074XB

  • Part #:
    4407266
  • Mfg Part #:
    1074XB
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Black X-Series Exhaust System - 1074XB

  • Part #:
    4407266
  • Mfg Part #:
    1074XB
MSRP: $1,448.00

Price: $1303.20 10% off!
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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.

Specifications
Part #: 4407266
Mfg #: 1074XB
Color Black
Style Tapered Tip
Type 2-Into-1 System
Units Each
Weight 31.10 lbs
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Resources & Manuals
Fitment for Thunderheader Black X-Series Exhaust System - 1074XB

Part 4407266 fits the following machines

Harley-Davidson
  • Electra Glide Classic - FLHTC 1999-2005, 2009-2013
  • Electra Glide Classic (EFI) - FLHTC 2007-2008
  • Electra Glide Classic Injected - FLHTC I 1999-2006
  • Electra Glide Injected CVO/SE - FLHTCSE 2004
  • Electra Glide Injected CVO/SE - FLHTCSE 2 2005
  • Electra Glide Police - FLHTP 2014-2016
  • Electra Glide Standard - FLHT 1999-2006, 2009
  • Electra Glide Standard (EFI) - FLHT 2007-2008
  • Electra Glide Standard Injected - FLHT I 2003-2006
  • Electra Glide Ultra Classic - FLHTCU 1999, 2009-2014
  • Electra Glide Ultra Classic (EFI) - FLHTCU 2007-2008
  • Electra Glide Ultra Classic CVO/SE - FLHTCUSE 4 2009
  • 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 CVO/SE (EFI) - FLHTCUSE 2 2007
  • Electra Glide Ultra Classic CVO/SE (EFI) - FLHTCUSE 3 2008
  • Electra Glide Ultra Classic Injected - FLHTCU I 1999-2006
  • Electra Glide Ultra Limited - FLHTK 2010-2013
  • Road Glide - FLTR 1999-2002, 2009
  • Road Glide (EFI) - FLTR 2007-2008
  • Road Glide Custom - FLTRX 2010-2013
  • Road Glide Custom CVO/SE - FLTRXSE 2012
  • Road Glide Custom CVO/SE - FLTRXSE 2 2013
  • Road Glide CVO/SE - FLTRSE 3 2009
  • Road Glide Injected - FLTR I 1999-2006
  • Road Glide Injected CVO/SE - FLTRSE I 2000
  • Road Glide Injected CVO/SE - FLTRSE I 2 2001
  • Road Glide Ultra - FLTRU 2011-2013
  • Road Glide Ultra CVO/SE - FLTRUSE 2011
  • Road King - FLHR 1999-2006, 2009-2013
  • Road King (EFI) - FLHR 2007-2008
  • Road King Classic - FLHRC 2009-2013
  • Road King Classic (EFI) - FLHRC 2007-2008
  • Road King Classic Injected - FLHRC I 1999-2006
  • Road King Custom - FLHRS 2004-2006
  • Road King Custom (EFI) - FLHRS 2007
  • Road King Custom Injected - FLHRS I 2004-2006
  • Road King CVO/SE - FLHRSE 5 2013
  • Road King CVO/SE (EFI) - FLHRSE 3 2007
  • Road King CVO/SE (EFI) - FLHRSE 4 2008
  • Road King Injected - FLHR I 1999-2006
  • Road King Injected CVO/SE - FLHRSE I 2002
  • Road King Injected CVO/SE - FLHRSE I 2 2003
  • Street Glide - FLHX 2006, 2009, 2011-2013
  • Street Glide (EFI) - FLHX 2007-2008
  • Street Glide CVO/SE - FLHXSE 2010
  • Street Glide CVO/SE - FLHXSE 2 2011
  • Street Glide CVO/SE - FLHXSE 3 2012
  • Street Glide Injected - FLHX I 2006

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Reviews & Questions
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Browse 2 questions Browse 2 questions and 2 answers
Can you order just the header assembly?
Lincoln C on Dec 23, 2019
BEST ANSWER: Comes as a complete system
Can you get just the heat shields for this system?
A shopper on May 21, 2018
BEST ANSWER: No
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Great Service
Great Product, great service!
January 15, 2018
Purchased
over 2 years ago