Shop header muffler inserts

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$133.99
Car Chemistry FTD3025C: Car Chemistry Header Mufflers
Summit Racing
Free shipping
$133.99
Car Chemistry FTD3025C: Car Chemistry Header Mufflers
Summit Racing
$39.01
$50.72
Patriot Exhaust H3842 Side Tube Muffler Insert
Amazon.com
Free shipping
23% off
$39.01
$50.72
Patriot Exhaust H3842 Side Tube Muffler Insert
Amazon.com
$124.99
Car Chemistry FTD3003: Car Chemistry Header Mufflers
Summit Racing
$124.99
Car Chemistry FTD3003: Car Chemistry Header Mufflers
Summit Racing
$134.99
Speedway Lake-Style Header Collector Muffler Inserts, 3.5 Inch
Speedway Motors
$134.99
Speedway Lake-Style Header Collector Muffler Inserts, 3.5 Inch
Speedway Motors
$16.99
Schoenfeld Headers 42530: Schoenfeld Insert Mufflers
Summit Racing
$16.99
Schoenfeld Headers 42530: Schoenfeld Insert Mufflers
Summit Racing
$116.99
Speedway Lake-Style Header Collector Muffler Inserts, 4 Inch
Speedway Motors
$116.99
Speedway Lake-Style Header Collector Muffler Inserts, 4 Inch
Speedway Motors
$115.30
Patriot Exhaust H3954: Patriot Muffler Inserts
Summit Racing
$115.30
Patriot Exhaust H3954: Patriot Muffler Inserts
Summit Racing
$54.99
Muffler Inserts For 3.5 X 20 Inch Header Collector Extensions
Speedway Motors
$54.99
Muffler Inserts For 3.5 X 20 Inch Header Collector Extensions
Speedway Motors
$321.61
Kooks Headers MUF-018: Kooks Headers Mufflers
Summit Racing
Free shipping
$321.61
Kooks Headers MUF-018: Kooks Headers Mufflers
Summit Racing
$134.99
$155.24
Speedway Motors 3.5 Inch Lake-Style Header Muffler Inserts: 6-Sided
eBay
13% off
$134.99
$155.24
Speedway Motors 3.5 Inch Lake-Style Header Muffler Inserts: 6-Sided
eBay
$50.99
Speedway Muffler Inserts For 26 Inch Header Collector Extensions
Speedway Motors
$50.99
Speedway Muffler Inserts For 26 Inch Header Collector Extensions
Speedway Motors
$73.95
(1) Collector Header Insert Muffler Silencer Baffle Gasser Rat Rod Fit 3.5" OD
eBay
$73.95
(1) Collector Header Insert Muffler Silencer Baffle Gasser Rat Rod Fit 3.5" OD
eBay
$73.95
(1) Collector Header Insert Muffler Silencer Baffle Gasser Rat Rod Fit 4" OD
eBay
$73.95
(1) Collector Header Insert Muffler Silencer Baffle Gasser Rat Rod Fit 4" OD
eBay
$219.00
3" Fenderwell And Undercar Slip In Turn Out Header Muffler Inserts Pair. Car Chemistry, Inc. Other Exhaust & Emission Parts.
eBay
$219.00
3" Fenderwell And Undercar Slip In Turn Out Header Muffler Inserts Pair. Car Chemistry, Inc. Other Exhaust & Emission Parts.
eBay
$79.95
(1) Collector Header Insert Muffler Silencer Baffle Gasser Rat Rod Fit
eBay
$79.95
(1) Collector Header Insert Muffler Silencer Baffle Gasser Rat Rod Fit
eBay
$116.99
$134.54
Speedway Lake-Style Header Collector Muffler Inserts, 4 Inch
eBay
13% off
$116.99
$134.54
Speedway Lake-Style Header Collector Muffler Inserts, 4 Inch
eBay
$129.99
Car Chemistry FTD3003C: Car Chemistry Header Mufflers
Summit Racing
Free shipping
$129.99
Car Chemistry FTD3003C: Car Chemistry Header Mufflers
Summit Racing
$21.99
Speedway Header Collector Muffler Insert, 3 Inch
Speedway Motors
$21.99
Speedway Header Collector Muffler Insert, 3 Inch
Speedway Motors
$348.47
Kooks Headers MUF-019: Kooks Headers Mufflers
Summit Racing
Free shipping
$348.47
Kooks Headers MUF-019: Kooks Headers Mufflers
Summit Racing
$226.99
Patriot Exhaust H3845 Muffler Inserts For Traditional Lakester Headers 2" Core 3 1/2" Cones
Advance Auto Parts
$226.99
Patriot Exhaust H3845 Muffler Inserts For Traditional Lakester Headers 2" Core 3 1/2" Cones
Advance Auto Parts
$15.41
Motorcycle 51mm 2" Exhaust Muffler Insert Db Killer Baffle Removable
eBay
$15.41
Motorcycle 51mm 2" Exhaust Muffler Insert Db Killer Baffle Removable
eBay
$226.72
$249.39
Patriot Exhaust H3845 Muffler Inserts For Traditional Lakester Headers
Speedway Motors
$226.72
$249.39
Patriot Exhaust H3845 Muffler Inserts For Traditional Lakester Headers
Speedway Motors
$49.99
Zzperformance 2.5" EXHAUST CONE INSERT: Zzperformance Exhaust Insert Cones
Summit Racing
$49.99
Zzperformance 2.5" EXHAUST CONE INSERT: Zzperformance Exhaust Insert Cones
Summit Racing
$62.57
Patriot Exhaust H3840: Patriot Muffler Inserts
Summit Racing
$62.57
Patriot Exhaust H3840: Patriot Muffler Inserts
Summit Racing
$336.53
Max Flow Muffler Side Pipe Inserts Dougs Headers D952. DOUGS HEADERS. Other Exhaust & Emission Parts. D952.
eBay
Free shipping
$336.53
Max Flow Muffler Side Pipe Inserts Dougs Headers D952. DOUGS HEADERS. Other Exhaust & Emission Parts. D952.
eBay
$30.46
Vzu 2 Pcs Universal Motorcycle Exhaust Baffle Muffler Insert, Db Killer Silencer, Quiet Motorbike Exhaust Insert For Mot
Everymarket INC
$30.46
Vzu 2 Pcs Universal Motorcycle Exhaust Baffle Muffler Insert, Db Killer Silencer, Quiet Motorbike Exhaust Insert For Mot
Everymarket INC
$41.97
Universal Motorcycle Exhaust Can Muffler Insert, DB Killer Silencer, Steel Muffler For Noise Reduction Universal Motorcycle Exhaust Can Muffler Insert
Inspire Uplift
$41.97
Universal Motorcycle Exhaust Can Muffler Insert, DB Killer Silencer, Steel Muffler For Noise Reduction Universal Motorcycle Exhaust Can Muffler Insert
Inspire Uplift
$30.50
Vzu 2 Pcs Universal Motorcycle Exhaust Baffle Muffler Insert, Db Killer Silencer, Quiet Motorbike Exhaust Insert For Mot
Everymarket INC
$30.50
Vzu 2 Pcs Universal Motorcycle Exhaust Baffle Muffler Insert, Db Killer Silencer, Quiet Motorbike Exhaust Insert For Mot
Everymarket INC
$14.09
$14.99
Universal Motorcycle Exhaust Can Muffler Insert Baffle Db Killer
eBay
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$14.99
Universal Motorcycle Exhaust Can Muffler Insert Baffle Db Killer
eBay
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Universal Motorcycle Exhaust Can Muffler Insert Baffle Db Killer
eBay
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Universal Motorcycle Exhaust Can Muffler Insert Baffle Db Killer
eBay
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Motorcycle Exhaust Mufflers Baffle Insert Db Killer Removable Silencer
eBay
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Motorcycle Exhaust Mufflers Baffle Insert Db Killer Removable Silencer
eBay
$47.16
Motoforti 51mm Motorcycle Exhaust Silencer Exhaust Insert Muffler Pipe Baffle Long Lasting
Everymarket INC
$47.16
Motoforti 51mm Motorcycle Exhaust Silencer Exhaust Insert Muffler Pipe Baffle Long Lasting
Everymarket INC
$31.16
Motoforti 40mm Motorcycle Exhaust Can Baffle Muffler Insert Baffle Long Lasting
Everymarket INC
$31.16
Motoforti 40mm Motorcycle Exhaust Can Baffle Muffler Insert Baffle Long Lasting
Everymarket INC
$64.06
Akrapovic - Muffler Insert - Muffler Insert - V-TUV128
UtvNut
$64.06
Akrapovic - Muffler Insert - Muffler Insert - V-TUV128
UtvNut
$119.99
2.5 Inch Hedman Turbo Hedder Mufflers - Steel | Hedman Hedders 25662
Summit Racing
$119.99
2.5 Inch Hedman Turbo Hedder Mufflers - Steel | Hedman Hedders 25662
Summit Racing
$41.56
A Absopro 42mm Motorcycle Exhaust Muffler Insert Baffle Can Item Replacement
Everymarket INC
$41.56
A Absopro 42mm Motorcycle Exhaust Muffler Insert Baffle Can Item Replacement
Everymarket INC
Exhaust Insert Comparison Test! (Sound Level and Back Pressure)
15:11
Exhaust Insert Comparison Test! (Sound Level and Back Pressure)
227.4K viewsDec 7, 2017
YouTubeEmbrace Making
Harley Exhaust, Deeper Tone & More Power-Under $50
7:38
Find in video from 00:28Introduction to Thunder Torque Inserts
Harley Exhaust, Deeper Tone & More Power-Under $50
72.2K viewsMay 17, 2022
YouTubeDKCustomProducts
Khrome Werks Harley Davidson exhaust baffle and insert sound test! Which one sounds the best!
19:24
Khrome Werks Harley Davidson exhaust baffle and insert sound test! Which one sounds the best!
54.9K viewsOct 25, 2024
YouTubeVolunteer Audio
How to Install Better Power w/ Thunder Torque Inserts™ on inexpensive, knock-off exhaust.
9:59
How to Install Better Power w/ Thunder Torque Inserts™ on inexpensive, knock-off exhaust.
37.7K viewsOct 18, 2022
YouTubeDKCustomProducts
Hooker Header Aero Chamber Muffler (Install, Sound Comparison, and Review)
14:12
Find in video from 01:36Custom Muffler and Issues
Hooker Header Aero Chamber Muffler (Install, Sound Compariso…
32.3K viewsMay 7, 2021
YouTubemartinbuilt
Do it Yourself Header Building: Build the custom exhaust system you always wanted.
12:14
Find in video from 00:27Introduction to Custom Headers
Do it Yourself Header Building: Build the custom exhaust system …
639.7K viewsMay 7, 2018
YouTubeTrick-Tools.com
How To Fix Stripped & Damaged Exhaust Threads Using HELI COILS - Thread Inserts
5:29
Find in video from 01:33Inserting the New Helicoil
How To Fix Stripped & Damaged Exhaust Threads Using HELI COIL…
53.6K viewsOct 2, 2015
YouTubedonyboy73
Fuel Moto Tunable Insert Installation 2.5” Mufflers Rinehart S&S Jackpot H-D Mufflers
3:21
Find in video from 00:11Installing the Reinhardt Muffler
Fuel Moto Tunable Insert Installation 2.5” Mufflers Rinehart …
11.6K viewsApr 8, 2020
YouTubeFuel Moto
0:34
Beyea header muffler install 440 Plymouth
18.4K viewsJan 26, 2019
YouTubebicylindrico
7 Mufflers Reviewed & Compared!
8:59
Find in video from 01:31Mufflers Overview
7 Mufflers Reviewed & Compared!
380.8K viewsJun 27, 2024
YouTubeExhaust Addicts
How To Wrap Exhaust Headers Properly + PROS & CONS of Exhaust & Header Wrap
16:58
Find in video from 00:17Preparing the Exhaust System
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177.9K viewsFeb 27, 2022
YouTubeBleepinJeep
How to Header Wrap Complicated Exhaust Manifolds - A Complete Guide
21:12
Find in video from 13:00Securing the Exhaust Manifold
How to Header Wrap Complicated Exhaust Manifolds - A Complete G…
49.7K viewsMay 20, 2018
YouTubeBoostedMotorsports
4:25
Watch this before buying THUNDER TORQUE INSERTS For your motorcycle!
4.2K viewsNov 3, 2024
YouTubeLeggetts Garage
6:11
Make Exhaust Quieter - DB Killer vs Exhaust Wrap. UNEXPECTED Result
2.8K viewsMay 6, 2025
YouTubeDrive Tune Media
19:54
Easy C3 Corvette Exhaust Installation - Doug's Headers with FlowMaster Exhaust.
29.3K viewsDec 29, 2023
YouTube33 Mile Garage
How To Install Long Tube Headers On An S550 Mustang (2015-2023)
14:07
Find in video from 02:22Removing the Catback Exhaust
How To Install Long Tube Headers On An S550 Mustang (2015-2023)
157K viewsSep 20, 2019
YouTubeLate Model Restoration (LMR)
5:22
#Motorcycle Exhaust | Quiet Baffle Installation Guide
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YouTubeDennis Kirk, Inc.
FMF Quiet Insert Instruction Video
1:55
Find in video from 00:28Removing the Muffler Insert
FMF Quiet Insert Instruction Video
152.8K viewsApr 18, 2018
YouTubeFMFRacing1973
10:02
DIY 2.5Inch Turbo Muffler | Stainless Steel
203.1K viewsSep 25, 2022
YouTubeGP Garage
Transform Your Harley Exhaust! Louder, Deeper, More Power - with Sound Clips
17:05
Find in video from 00:15Understanding Thunder Torque Inserts
Transform Your Harley Exhaust! Louder, Deeper, More Power - wit…
23.3K viewsJun 11, 2024
YouTubeDKCustomProducts
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15:52
Find in video from 00:50Headers Installation
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9:46
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YouTubeTAB Performance, Inc.
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1.3M viewsMay 11, 2024
YouTubeFluid MotorUnion
Headers vs Manifolds | Are Headers Worth it | HP, Torque, & Sound
9:22
Find in video from 00:13Introduction to Headers vs Manifolds
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9:23
Find in video from 02:01Choosing the Right Exhaust
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How To Fix A Loud 3-Inch Exhaust
12:54
Find in video from 02:30Building the Exhaust Hangers
How To Fix A Loud 3-Inch Exhaust
498K viewsJun 19, 2018
YouTubeSpeed Academy
Deeper Exhaust Tone & More Torque for Your Harley
7:44
Find in video from 01:08Exhaust with No Thunder Torque Insert
Deeper Exhaust Tone & More Torque for Your Harley
20.8K viewsOct 13, 2023
YouTubeDKCustomProducts
30:26
Installing 5 inch exhaust under a big rig (very detailed)
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Shop header muffler inserts

Sponsored
About our ads
$133.99
Car Chemistry FTD3025C: Car Chemistry Header Mufflers
Summit Racing
Free shipping
$133.99
Car Chemistry FTD3025C: Car Chemistry Header Mufflers
Summit Racing
$39.01
$50.72
Patriot Exhaust H3842 Side Tube Muffler Insert
Amazon.com
Free shipping
23% off
$39.01
$50.72
Patriot Exhaust H3842 Side Tube Muffler Insert
Amazon.com
$124.99
Car Chemistry FTD3003: Car Chemistry Header Mufflers
Summit Racing
$124.99
Car Chemistry FTD3003: Car Chemistry Header Mufflers
Summit Racing
$134.99
Speedway Lake-Style Header Collector Muffler Inserts, 3.5 Inch
Speedway Motors
$134.99
Speedway Lake-Style Header Collector Muffler Inserts, 3.5 Inch
Speedway Motors
$16.99
Schoenfeld Headers 42530: Schoenfeld Insert Mufflers
Summit Racing
$16.99
Schoenfeld Headers 42530: Schoenfeld Insert Mufflers
Summit Racing
$116.99
Speedway Lake-Style Header Collector Muffler Inserts, 4 Inch
Speedway Motors
$116.99
Speedway Lake-Style Header Collector Muffler Inserts, 4 Inch
Speedway Motors
$115.30
Patriot Exhaust H3954: Patriot Muffler Inserts
Summit Racing
$115.30
Patriot Exhaust H3954: Patriot Muffler Inserts
Summit Racing
$54.99
Muffler Inserts For 3.5 X 20 Inch Header Collector Extensions
Speedway Motors
$54.99
Muffler Inserts For 3.5 X 20 Inch Header Collector Extensions
Speedway Motors
$321.61
Kooks Headers MUF-018: Kooks Headers Mufflers
Summit Racing
Free shipping
$321.61
Kooks Headers MUF-018: Kooks Headers Mufflers
Summit Racing
$134.99
$155.24
Speedway Motors 3.5 Inch Lake-Style Header Muffler Inserts: 6-Sided
eBay
13% off
$134.99
$155.24
Speedway Motors 3.5 Inch Lake-Style Header Muffler Inserts: 6-Sided
eBay
$50.99
Speedway Muffler Inserts For 26 Inch Header Collector Extensions
Speedway Motors
$50.99
Speedway Muffler Inserts For 26 Inch Header Collector Extensions
Speedway Motors
$73.95
(1) Collector Header Insert Muffler Silencer Baffle Gasser Rat Rod Fit 3.5" OD
eBay
$73.95
(1) Collector Header Insert Muffler Silencer Baffle Gasser Rat Rod Fit 3.5" OD
eBay
$73.95
(1) Collector Header Insert Muffler Silencer Baffle Gasser Rat Rod Fit 4" OD
eBay
$73.95
(1) Collector Header Insert Muffler Silencer Baffle Gasser Rat Rod Fit 4" OD
eBay
$219.00
3" Fenderwell And Undercar Slip In Turn Out Header Muffler Inserts Pair. Car Chemistry, Inc. Other Exhaust & Emission Parts.
eBay
$219.00
3" Fenderwell And Undercar Slip In Turn Out Header Muffler Inserts Pair. Car Chemistry, Inc. Other Exhaust & Emission Parts.
eBay
$79.95
(1) Collector Header Insert Muffler Silencer Baffle Gasser Rat Rod Fit
eBay
$79.95
(1) Collector Header Insert Muffler Silencer Baffle Gasser Rat Rod Fit
eBay
$116.99
$134.54
Speedway Lake-Style Header Collector Muffler Inserts, 4 Inch
eBay
13% off
$116.99
$134.54
Speedway Lake-Style Header Collector Muffler Inserts, 4 Inch
eBay
$129.99
Car Chemistry FTD3003C: Car Chemistry Header Mufflers
Summit Racing
Free shipping
$129.99
Car Chemistry FTD3003C: Car Chemistry Header Mufflers
Summit Racing
$21.99
Speedway Header Collector Muffler Insert, 3 Inch
Speedway Motors
$21.99
Speedway Header Collector Muffler Insert, 3 Inch
Speedway Motors