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Chrome Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1024S

  • Part #:
    4408738
  • Mfg Part #:
    1024S
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Chrome Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1024S

  • Part #:
    4408738
  • Mfg Part #:
    1024S
MSRP: $1,109.00

Price: $998.10 10% off!
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Thunderheader Chrome Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1024S
  • 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.

Specifications
Part #: 4408738
Mfg #: 1024S
Color Chrome
Style Straight-Cut Tip
Type 2-Into-1 System
Units Each
Weight 24.80 lbs
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Fitment for Thunderheader Chrome Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields - 1024S

Part 4408738 fits the following machines

Harley-Davidson
  • Electra Glide - FLH 1984-1985
  • Electra Glide - FLHT 1985-1987
  • Electra Glide Classic - FLHTC 1984-2005
  • Electra Glide Classic - FLHTC (Early Model) 1984
  • Electra Glide Classic Injected - FLHTC I 1996-2006
  • Electra Glide Injected CVO/SE - FLHTCSE 2004
  • Electra Glide Injected CVO/SE - FLHTCSE 2 2005
  • Electra Glide Special - FLHX 1984-1985
  • Electra Glide Sport - FLHS 1984, 1987-1993
  • Electra Glide Standard - FLHT 1995-2006
  • Electra Glide Standard Injected - FLHT I 2003-2006
  • Electra Glide Ultra Classic - FLHTCU 1989-1997
  • Electra Glide Ultra Classic Injected - FLHTCU I 1995-2006
  • Road Glide - FLTR 1998-2002
  • Road Glide Injected - FLTR I 1998-2006
  • Road Glide Injected CVO/SE - FLTRSE I 2000
  • Road Glide Injected CVO/SE - FLTRSE I 2 2001
  • Road King - FLHR 1994-2006
  • Road King Classic Injected - FLHRC I 1998-2006
  • Road King Custom - FLHRS 2004-2006
  • Road King Custom Injected - FLHRS I 2004-2006
  • Road King Injected - FLHR I 1996-2006
  • Road King Injected CVO/SE - FLHRSE I 2002
  • Road King Injected CVO/SE - FLHRSE I 2 2003
  • Street Glide - FLHX 2006
  • Street Glide Injected - FLHX I 2006
  • Tour Glide Classic - FLTC 1985-1991
  • Tour Glide Classic - FLTC (Early Model) 1984
  • Tour Glide Classic - FLTC (Late Model) 1984
  • Tour Glide Ultra Classic - FLTCU 1989-1995
  • Tour Glide Ultra Classic Injected - FLTCU I 1996

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Reviews & Questions
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Browse 5 questions Browse 5 questions and 5 answers
How long is it back order ?
Douglas L on Jul 2, 2018
BEST ANSWER: We usually get new stock within 30 days unless you put it on back order which will expedite the process (usually 7-10 days).
I need a new black mounting bracket and clamps can I get them separate?(1) Black steel mounting bracket

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

(1) 2-5/8" Chrome exhaust clamp
Jeffery P on Jan 26, 2020
BEST ANSWER: Sorry, we don't have it separate, you may need to contact Thunderheader
Does this fit 1999 FLTRI harley?
A shopper on Mar 27, 2019
BEST ANSWER: Most likely . It bolted right up on my 03
How much horse power can I expect to gain?
Nick H on Feb 5, 2019
BEST ANSWER: We don't have dyno specs.
Is this the new style TH 2 1/2 diameter?
A shopper on Dec 30, 2016
BEST ANSWER: I do not have the answer to that inquiry, please contact ThunderHeader for the correct response to that:

http://www.thunderheader.net/contact.php
4.3 / 5.0
6 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
5
0
0
0
1
Finish
4.2 / 5
Fit
4.8 / 5
Performance
4.8 / 5
Styling
4.8 / 5
Value
4.8 / 5
Loudness
Very Quiet
Average
Very Loud
Would you recommend this product?
Yes (6)
Finish
5 / 5
Fit
5 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
5 / 5
Styling
5 / 5
Value
5 / 5
Would you recommend this product?
Yes
Thunderheader on evo great
It sounds great and performs good, heatshields will always keep pipes looking good, also best price on net, even better they were in stock and got it quick
January 11, 2017
Purchased
over 3 years ago
Finish
5 / 5
Fit
4 / 5
Performance
4 / 5
Styling
4 / 5
Value
5 / 5
Would you recommend this product?
Yes
TH is what I needed
I have an 88, added a big sucker and the TH. Preformance is very good. Lower end and shooting to the red line is quick. Bikes still an 88 so only so much you can expect without going inside. But on the street my baggers no slouch. The sound of the TH is good, quiet when you wanna be and loud when your on it.
October 22, 2016
Purchased
over 3 years ago
Finish
5 / 5
Fit
5 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
5 / 5
Styling
5 / 5
Value
5 / 5
Would you recommend this product?
Yes
Best decision I made was to junk the dresser exhaust and bolt up the Thunder Header
June 27, 2019
Suburb of Chicago , IL
Purchased
1 year ago
Ride:
1998 Road King
Finish
4 / 5
Fit
5 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
5 / 5
Styling
5 / 5
Value
4 / 5
Would you recommend this product?
Yes
Awesome product, would buy again.
I love this exhaust. I debated getting this or a Pro-Pipe. I’m glad I bought this. Sounds awesome at idle and she gets nice and loud when your give it some go. Quality is good, I personally was apprehensive about all the quality reviews I had read but everything seems just fine. Fit well, I shimmed the muffler so there wouldn’t be any excessive stress and so far so good. I’ve only got about 450 miles on it but have noticed a good difference in performance as well.
Few days after putting it on.
Few days after putting it on.
March 26, 2020
East Providence , RI
Purchased
5 months ago
Ride:
2015 FLSTN Softail Deluxe
Finish
5 / 5
Fit
5 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
5 / 5
Styling
5 / 5
Value
5 / 5
Would you recommend this product?
Yes
Thunder Header
Looks great and was easy enough to install by myself and sounds great too
The bike looks great and sounds great with this header and it was not hard to install
The bike looks great and sounds great. I really like this header
June 28, 2019
Dayton , OH
Purchased
1 year ago
Ride:
Harley Davidson
Finish
1 / 5
Would you recommend this product?
Yes
returned was rusted
was in a plastic bag with water now waiting
September 1, 2018
Purchased
1 year ago