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Thunderheader Racing Products 2 into 1 High Performance Exhaust System - 1067

  • Part #: 4406473
  • Manufacturer Part #: 1067

MSRP Price: $730.00

Our Price: $657.00

You Save:
$73.00 (10%)

Overview of Thunderheader Racing Products 2 into 1 High Performance Exhaust System - 1067

  • ThunderHeader head pipes have been tuned to the proper length and diameter to produce maximum horsepower and a excellent torque curve
  • A patented collector is used
  • The collector is designed to direct spent gases through four acoustical dampening chambers
  • The flow director serves a multi-task function: directs outgoing flow through four acoustical dampening chambers creating a spiral motion upon exiting to atmosphere and it also forms a pyramidal shaped anti-revision trap to minimize the amount of air rushing in
  • In conjunction with the flow director, a diffuser shroud is attached to the reverse cone, this patented device is designed to defuse the air rushing in as the pressure inside of the system becomes equal to atmosphere

Replacement heat shields PART NO. 25-1656 (3-piece set)

Included Items:
(1) Header
(1) Rear support bracket
(2) 5/16-18 x 1-1/4 in. Hex bolts
(2) 5/16 Plain washers
(2) 5/16 in. Lock washers
(2) 5/16-18 Nuts
(2) 3/8-16 x 3/4 in. Hex bolts
(2) 3/8 in. Plain washers

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 Racing Products 2 into 1 High Performance Exhaust System - 1067

Color - Primary Chrome
Finish Chrome
Style - Exhaust Tip Tapered Tip
Type - Exhaust 2-Into-1 System
Units Each
Weight 19.80 lbs

Specs for Thunderheader Racing Products 2 into 1 High Performance Exhaust System - 1067

Color - Primary Chrome
Finish Chrome
Style - Exhaust Tip Tapered Tip
Type - Exhaust 2-Into-1 System
Units Each
Weight 19.80 lbs

Fitment for Thunderheader Racing Products 2 into 1 High Performance Exhaust System - 1067

See if this part fits your ride

Part 4406473 fits the following machines

Harley-Davidson
  • 2016 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2015 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2014 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2013 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2012 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2013 Harley-Davidson Softail Blackline - FXS
  • 2012 Harley-Davidson Softail Blackline - FXS
  • 2016 Harley-Davidson Softail Deluxe - FLSTN
  • 2015 Harley-Davidson Softail Deluxe - FLSTN
  • 2014 Harley-Davidson Softail Deluxe - FLSTN
  • 2013 Harley-Davidson Softail Deluxe - FLSTN
  • 2012 Harley-Davidson Softail Deluxe - FLSTN
  • 2016 Harley-Davidson Softail Fat Boy - FLSTF
  • 2015 Harley-Davidson Softail Fat Boy - FLSTF
  • 2014 Harley-Davidson Softail Fat Boy - FLSTF
  • 2013 Harley-Davidson Softail Fat Boy - FLSTF
  • 2012 Harley-Davidson Softail Fat Boy - FLSTF
  • 2016 Harley-Davidson Softail Fat Boy Lo - FLSTFB
  • 2015 Harley-Davidson Softail Fat Boy Lo - FLSTFB
  • 2014 Harley-Davidson Softail Fat Boy Lo - FLSTFB
  • 2013 Harley-Davidson Softail Fat Boy Lo - FLSTFB
  • 2012 Harley-Davidson Softail Fat Boy Lo - FLSTFB
  • 2016 Harley-Davidson Softail Fatboy S - FLSTFBS
  • 2016 Harley-Davidson Softail Slim - FLS
  • 2015 Harley-Davidson Softail Slim - FLS
  • 2014 Harley-Davidson Softail Slim - FLS
  • 2013 Harley-Davidson Softail Slim - FLS
  • 2012 Harley-Davidson Softail Slim - FLS
  • 2016 Harley-Davidson Softail Slim S - FLSS
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Instructions and Manuals for Thunderheader Racing Products 2 into 1 High Performance Exhaust System - 1067