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Chrome Thundercone Slip-On Mufflers - 1066

  • Part #:
    4410260
  • Mfg Part #:
    1066
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Chrome Thundercone Slip-On Mufflers - 1066

  • Part #:
    4410260
  • Mfg Part #:
    1066
MSRP: $657.00

Price: $591.30 10% off!
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Thunderheader Chrome Thundercone Slip-On Mufflers - 1066
  • Increased horsepower, torque and unmistakable Thunderheader sound
  • A patented collector is used instead of a conventional baffle in the muffler
  • 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-reversion trap to minimize the amount of air rushing in
  • In conjunction with the flow director, a diffuser shroud is built into the reverse cone, this patented device is designed to diffuse the air rushing in as the pressure inside of the system becomes equal to atmosphere

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.



Included Items:

(2) Chrome steel muffler assembly

(4) 5/16"-24 x 3/4" Hex head bolts

(8) 5/16" Flat washers

(4) 5/16" Nylock nuts

Instructions

Specifications
Part #: 4410260
Mfg #: 1066
Color - Primary Chrome
Finish Chrome
Style Tapered Tip
Type Slip-On/Muffler
Units Pair
Weight 12.55 lbs
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Resources & Manuals
Fitment for Thunderheader Chrome Thundercone Slip-On Mufflers - 1066

Part 4410260 fits the following machines

Harley-Davidson
  • Electra Glide Police - FLHTP 2017-2018
  • 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 Special - FLHRXS 2017-2020
  • Street Glide - FLHX 2017-2020
  • Street Glide CVO/SE - FLHXSE 2017-2020
  • Street Glide Special - FLHXS 2017-2020
Reviews & Questions
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Browse 6 questions Browse 6 questions and 7 answers
Do they make the thunderheader slip on for a 2014 street glide?
A shopper on Mar 1, 2019
BEST ANSWER: Yes part number is 1061 and comes with heat shields
will these slip ons fit the 2019 Harley high flow exhaust part number 64800059 as they are larger in diameter than the stock pipes?
A shopper on May 17, 2019
BEST ANSWER: No
Do have these that will fit a 2012 ultra limited?
Allen P on Apr 16, 2019
BEST ANSWER: https://www.denniskirk.com/thunderheader/dual-style-slip-on-mufflers-1061.ph25010.prd/H25010.sku
Do they have these for a 2012 ultra limited?
A shopper on Apr 16, 2019
BEST ANSWER: https://www.denniskirk.com/thunderheader/dual-style-slip-on-mufflers-1061.ph25010.prd/H25010.sku
What is part number for 2019 FLHTC?
David C on Apr 10, 2019
BEST ANSWER: The chrome is 1066
How much louder are these?
Paul P on Mar 27, 2019
BEST ANSWER: Sorry, we don't have decibel ratings
4.8 / 5.0
4 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
3
1
0
0
0
Finish
4.8 / 5
Fit
5.0 / 5
Performance
5.0 / 5
Styling
5.0 / 5
Value
4.8 / 5
Loudness
Very Quiet
Average
Very Loud
Would you recommend this product?
Yes (4)
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 sound well packaged
User submitted image
Added Mar 1, 2019
March 1, 2019
Abilene, TX
Purchased
10 months ago
Ride:
2017RoadKing
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
I’ll buy another if I needed to...
I like it a lot , thank you.
August 13, 2019
Euclid , OH
Purchased
5 months ago
Ride:
2017 H-D street glide
Finish
5 / 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
Great Pipes
May 15, 2019
Livermore , CA
Purchased
8 months ago
Ride:
2018 road glide
Finish
4 / 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
Wish I had black
I love the sound of the Thunderheaders. My only complaint was they didnt have the black ones otherwise I would have ordered them instead. The install is easy a d the look is great too.
October 19, 2019
Tacoma , WA
Purchased
2 months ago
Ride:
'18 Road Glide FLTRX