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Thunderheader Chrome Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1054S

  • Part #:
    4408740
  • Manufacturer Part #:
    1054S

MSRP Price: $996.00

Our Price: $896.40

You Save:
$99.60 (10%)
6 on Hand

Overview of Thunderheader Chrome Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1054S

  • 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) Chrome head pipe assembly with heat shields

(1) Chrome heat shield

(1) Chrome muffler assembly

(1) Black steel mounting bracket

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

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

(1) Chrome hose clamp # 56

(2) Chrome hose clamps # 40

(6) Chrome 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.

Specs for Thunderheader Chrome Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1054S

Color - Primary Chrome
Style Straight-Cut Tip
Type 2-Into-1 System
Units Each
Weight 24.85 lbs

Specs for Thunderheader Chrome Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1054S

Color - Primary Chrome
Style Straight-Cut Tip
Type 2-Into-1 System
Units Each
Weight 24.85 lbs

Fitment for Thunderheader Chrome Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1054S

See if this part fits your ride

Part 4408740 fits the following machines

Harley-Davidson
  • 2008 Harley-Davidson Electra Glide Classic (EFI) - FLHTC
  • 2007 Harley-Davidson Electra Glide Classic (EFI) - FLHTC
  • 2008 Harley-Davidson Electra Glide Standard (EFI) - FLHT
  • 2007 Harley-Davidson Electra Glide Standard (EFI) - FLHT
  • 2008 Harley-Davidson Electra Glide Ultra Classic (EFI) - FLHTCU
  • 2007 Harley-Davidson Electra Glide Ultra Classic (EFI) - FLHTCU
  • 2008 Harley-Davidson Road Glide (EFI) - FLTR
  • 2007 Harley-Davidson Road Glide (EFI) - FLTR
  • 2008 Harley-Davidson Road King (EFI) - FLHR
  • 2007 Harley-Davidson Road King (EFI) - FLHR
  • 2008 Harley-Davidson Road King Classic (EFI) - FLHRC
  • 2007 Harley-Davidson Road King Classic (EFI) - FLHRC
  • 2008 Harley-Davidson Street Glide (EFI) - FLHX
  • 2007 Harley-Davidson Street Glide (EFI) - FLHX
5.0 / 5.0
1 Review
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
1
0
0
0
0
Finish
4.0 / 5
Fit
4.0 / 5
Performance
5.0 / 5
Styling
5.0 / 5
Value
4.0 / 5
Loudness
Very Quiet
Average
Very Loud
Would you recommend this product?
Yes (1)
Finish
4 / 5
Fit
4 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
5 / 5
Styling
5 / 5
Value
4 / 5
Would you recommend this product?
Yes
Wow..! This thing ripps.. It has a nice note while cruising (more quiet than my Propipe at cruising, 2100rmp) and gets loud and angry under full acceleration. Nothing out there sounds like that... Great throttle response and acceleration thruout the torque curve. My engine is happy and so am I.
November 14, 2016
Purchased
1 year ago
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Instructions and Manuals for Thunderheader Chrome Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1054S

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