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Chrome X-Series Exhaust System - 1073X

  • Part #:
    4409869
  • Mfg Part #:
    1073X
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Chrome X-Series Exhaust System - 1073X

  • Part #:
    4409869
  • Mfg Part #:
    1073X
MSRP: $1,448.00

Price: $1303.20 10% off!
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Thunderheader Chrome X-Series Exhaust System - 1073X
  • Thunderheader™ X-Series™ 2-into 1 exhaust systems for Touring models 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
  • Complete with heat shields and all mounting hardware, and 12mm O2 sensor bungs
  • O2 sensor ports are pre-installed with O2 sensor plugs

 



Included Items:

(1) Chrome steel 2 into 1 header assembly W/chrome steel heat shields installed

(1) Chrome steel muffler assembly

(1) Chrome steel muffler heat shield

(11) #28 Hose clamps

(1) #48 Hose clamp

(1) #56 Hose clamp

(1) Band clamp

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

(2) 5/16"-18 Nylock nut

(3) 5/16" Flat washers

(1) Black steel mounting bracket

(1) Black steel 3 hole spacer

(1) Black aluminum round spacers

(1) 3/8"-16 x 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 #: 4409869
Mfg #: 1073X
Color Chrome
Style Tapered Tip
Type 2-Into-1 System
Units Each
Weight 31.25 lbs
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Resources & Manuals
Fitment for Thunderheader Chrome X-Series Exhaust System - 1073X

Part 4409869 fits the following machines

Harley-Davidson
  • Electra Glide Police - FLHTP 2017-2020
  • Electra Glide Standard - FLHT 2019-2020
  • Electra Glide Ultra Classic - FLHTCU 2017-2019
  • Electra Glide Ultra Limited - FLHTK 2017-2020
  • Electra Glide Ultra Limited CVO/SE - FLHTKSE 2017-2020
  • Electra Glide Ultra Limited Low - FLHTKL 2017-2019
  • Road Glide - FLTRX 2017-2020
  • Road Glide CVO/SE - FLTRXSE 2018-2019
  • Road Glide Limited - FLTRK 2020
  • Road Glide Special - FLTRXS 2017-2020
  • Road Glide Ultra - FLTRU 2017-2019
  • Road King - FLHR 2017-2020
  • Road King Police - FLHP 2019-2020
  • Road King Special - FLHRXS 2017-2020
  • Street Glide - FLHX 2017-2020
  • Street Glide CVO/SE - FLHXSE 2017-2020
  • Street Glide Special - FLHXS 2017-2020

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Reviews & Questions
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Browse 7 questions Browse 7 questions and 10 answers
Will you ship to california for a track only moto?
Luis tito on Feb 12, 2018
BEST ANSWER: 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.
will a fuel manager work with this with out using a turner??????
A shopper on Aug 4, 2017
BEST ANSWER: A fuel manager is a fuel injection tuner
Are these pipes good and loud?
A shopper on Jul 15, 2018
BEST ANSWER: Not as loud as I thought I have a tuner for them as well if I take the baffle out it will change the loudness for sure
will the X-series exhaust except the 18mm O2 sensors?
P O on Jun 5, 2019
BEST ANSWER: yes. has ports for both 12mm and 18mm
Will this fit the the hd cool flow fan?
Richard A on Apr 2, 2019
BEST ANSWER: I don’t know. I don’t have a fan
Can slip on ship to California?
A shopper on Jan 3, 2019
BEST ANSWER: 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.
Will this impact the Harley Factory Warranty?
flht95 on Dec 23, 2018
BEST ANSWER: It shouldn't, but check with your dealer
5.0 / 5.0
3 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
3
0
0
0
0
Finish
5.0 / 5
Fit
4.7 / 5
Performance
5.0 / 5
Styling
5.0 / 5
Value
5.0 / 5
Loudness
Very Quiet
Average
Very Loud
Would you recommend this product?
Yes (3)
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
Exhaust system
Best sounding best looking exhaust system for your m8 Harley awesome power and tourqe
April 27, 2020
Conway, NH
Purchased
4 months ago
Ride:
2018 HD streetglide
Finish
5 / 5
Fit
4 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
5 / 5
Styling
5 / 5
Value
5 / 5
Would you recommend this product?
Yes
Awesome Exhaust
I went from SE slips on's to the Thunderheader X, wished I would have done a Thunderheader from the start. The 2-1 pipes are very aggressive sounding at idle and sound really good with some RPM's going through them. Fitting the shields was a pain and the kit was missing two clamps to fasten the shields, but well worth the little extra time to get them on. The bike sounds incredible and really seemed to breath a little more life into the bike. I bought them off of the recommendation of a few buddies that have ran them for years along with others online that raved about the performance and I am glad I did the swap.
September 11, 2019
Fredericksburg, VA
Purchased
1 year ago
Ride:
2018 HD Road Glide
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
Great
Great!
February 15, 2018
Purchased
over 2 years ago