Shop Open Header Muffler Inserts

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$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
$116.99
Speedway Lake-Style Header Collector Muffler Inserts, 4 Inch
Speedway Motors
11
$116.99
Speedway Lake-Style Header Collector Muffler Inserts, 4 Inch
Speedway Motors
11
$50.99
Speedway Muffler Inserts For 26 Inch Header Collector Extensions
Speedway Motors
32
$50.99
Speedway Muffler Inserts For 26 Inch Header Collector Extensions
Speedway Motors
32
$54.99
Muffler Inserts For 3.5 X 20 Inch Header Collector Extensions
Speedway Motors
44
$54.99
Muffler Inserts For 3.5 X 20 Inch Header Collector Extensions
Speedway Motors
44
$25.29
$28.10
Patriot Exhaust H3844: Patriot Muffler Inserts
Summit Racing
52
$25.29
$28.10
Patriot Exhaust H3844: Patriot Muffler Inserts
Summit Racing
52
$44.22
Quiet Core Insert For WR Edition Exhaust
Weller Racing
$44.22
Quiet Core Insert For WR Edition Exhaust
Weller Racing
$20.99
Speedway Header Collector Muffler Insert, 3 Inch
Speedway Motors
15
$20.99
Speedway Header Collector Muffler Insert, 3 Inch
Speedway Motors
15
$48.42
Patriot Exhaust H3842 Side Tube Muffler Insert
Amazon.com
Free shipping
$48.42
Patriot Exhaust H3842 Side Tube Muffler Insert
Amazon.com
Free shipping
$219.99
Patriot Exhaust H3845 Muffler Inserts For Traditional Lakester Headers 2" Core 3 1/2" Cones, H3845
Advance Auto Parts
2
$219.99
Patriot Exhaust H3845 Muffler Inserts For Traditional Lakester Headers 2" Core 3 1/2" Cones, H3845
Advance Auto Parts
2
$199.99
Quiet Muffler Insert For 7" Stacks | Dynaflex Products
Iowa 80
$199.99
Quiet Muffler Insert For 7" Stacks | Dynaflex Products
Iowa 80
$48.40
Patriot Exhaust H7244 3" Exhaust Collector Reducer
Amazon.com
69
Free shipping
$48.40
Patriot Exhaust H7244 3" Exhaust Collector Reducer
Amazon.com
69
$116.99
$134.54
Speedway Lake-Style Header Collector Muffler Inserts, 4 Inch
eBay
2
13% off
$116.99
$134.54
Speedway Lake-Style Header Collector Muffler Inserts, 4 Inch
eBay
2
$134.99
$150.64
Speedway Motors 3.5 Inch Lake-Style Header Muffler Inserts: 6-Sided
eBay
7
10% off
$134.99
$150.64
Speedway Motors 3.5 Inch Lake-Style Header Muffler Inserts: 6-Sided
eBay
7
$154.99
YOLANDO 2.5'' Custom Exhaust Kit Universal Mild Steel Tubing 16 Gauge Mandrel Bend Pipe Straight & U-Bend (16PCS, 2 Packs)
Amazon.com
571
Free shipping
$154.99
YOLANDO 2.5'' Custom Exhaust Kit Universal Mild Steel Tubing 16 Gauge Mandrel Bend Pipe Straight & U-Bend (16PCS, 2 Packs)
Amazon.com
571
$54.40
$60.45
Patriot Exhaust H3840: Patriot Muffler Inserts
Summit Racing
3
10% off
$54.40
$60.45
Patriot Exhaust H3840: Patriot Muffler Inserts
Summit Racing
3
$134.99
Speedway Motors 3.5 Inch Lake-Style Header Muffler Inserts: 6-Sided Louvered
US eBay
7
Free shipping
$134.99
Speedway Motors 3.5 Inch Lake-Style Header Muffler Inserts: 6-Sided Louvered
US eBay
7
$219.00
3"" Fenderwell And Undercar Slip In Turn Out Header Muffler Inserts (Pair)
eBay.com
Free shipping
$219.00
3"" Fenderwell And Undercar Slip In Turn Out Header Muffler Inserts (Pair)
eBay.com
Free shipping
$40.10
$44.55
Patriot Exhaust H3842: Patriot Muffler Inserts
Summit Racing
4
$40.10
$44.55
Patriot Exhaust H3842: Patriot Muffler Inserts
Summit Racing
4
$116.99
Speedway Lake-Style Header Collector Muffler Inserts, 4 Inch
US eBay
2
Free shipping
$116.99
Speedway Lake-Style Header Collector Muffler Inserts, 4 Inch
US eBay
2
$67.95
(1) Collector Header Insert Muffler Silencer Baffle NO Caps Fit 3.5"" OD
eBay.com
1
$67.95
(1) Collector Header Insert Muffler Silencer Baffle NO Caps Fit 3.5"" OD
eBay.com
1
$133.99
Car Chemistry FTD3025C: Car Chemistry Header Mufflers
Summit Racing
3
Free shipping
$133.99
Car Chemistry FTD3025C: Car Chemistry Header Mufflers
Summit Racing
3
$219.05
Patriot Exhaust H3845 Muffler Inserts For Traditional Lakester Headers
US eBay
2
Free shipping
$219.05
Patriot Exhaust H3845 Muffler Inserts For Traditional Lakester Headers
US eBay
2
$44.99
Patriot Exhaust H3842 Side Tubes Muffler Insert 3 1/2" Diameter 7" Length, H3842
Advance Auto Parts
$44.99
Patriot Exhaust H3842 Side Tubes Muffler Insert 3 1/2" Diameter 7" Length, H3842
Advance Auto Parts
$12.97
WINTOWIN Muffler Mat Muffler Packing Fiberglass Exhaust Muffler Packing Material Universal Muffler Packing For 2-Stroke 4-Stroke Motorcycle ATV Dirt
Amazon.com
301
$12.97
WINTOWIN Muffler Mat Muffler Packing Fiberglass Exhaust Muffler Packing Material Universal Muffler Packing For 2-Stroke 4-Stroke Motorcycle ATV Dirt
Amazon.com
301
$191.57
Patriot Exhaust H3845 Traditional Lakester Muffler Exhaust Insert Muffler
Autoplicity.com
2
Free shipping
$191.57
Patriot Exhaust H3845 Traditional Lakester Muffler Exhaust Insert Muffler
Autoplicity.com
2
$163.00
7 X 39 Inch Exhaust Muffler Insert By Bestfit Replaces 87Q-70038AZ
4 State Trucks
$163.00
7 X 39 Inch Exhaust Muffler Insert By Bestfit Replaces 87Q-70038AZ
4 State Trucks
$245.12
Muffler Inserts - Trad. Lakester (2Pk)
Walmart
Free shipping
$245.12
Muffler Inserts - Trad. Lakester (2Pk)
Walmart
Free shipping
$103.95
Khrome Werks HP-Plus Louvered High Performance Baffle Inserts - Pair
Westend Motorsports
9
$103.95
Khrome Werks HP-Plus Louvered High Performance Baffle Inserts - Pair
Westend Motorsports
9
$60.99
Patriot Exhaust H3840 Side Tubes Muffler Insert 3 1/2" Diameter 12 1/2" Length, H3840
Advance Auto Parts
3
$60.99
Patriot Exhaust H3840 Side Tubes Muffler Insert 3 1/2" Diameter 12 1/2" Length, H3840
Advance Auto Parts
3
$1.84
DYNABRADE PRODUCTS Muffler Insert | DYN-56027
FleetPride
1
$1.84
DYNABRADE PRODUCTS Muffler Insert | DYN-56027
FleetPride
1
$18.99
Schoenfeld Insert Muffler
JEGS High Performance
1
$18.99
Schoenfeld Insert Muffler
JEGS High Performance
1
$165.99
Bestfit Aluminized Steel Muffler Insert For 6" Stacks
Big Rig Chrome Shop
$165.99
Bestfit Aluminized Steel Muffler Insert For 6" Stacks
Big Rig Chrome Shop
$322.79
Exhaust Header For 2005-2007 CHEVY COBALT SS/ION 2.0L, Exhaust Header+Catback Muffler Rolled Tip
Flashark
$322.79
Exhaust Header For 2005-2007 CHEVY COBALT SS/ION 2.0L, Exhaust Header+Catback Muffler Rolled Tip
Flashark
$40.15
$47.09
JEGS Glasspack Header Muffler With 3 in. Collector [2.250 in. Outlet]
JEGS High Performance
14% off
$40.15
$47.09
JEGS Glasspack Header Muffler With 3 in. Collector [2.250 in. Outlet]
JEGS High Performance
$60.99
$62.99
JEGS 30296 - Glasspack Header Muffler With 3 in. Collector [3 in. Turndown Outlet]
JEGS High Performance
16
$60.99
$62.99
JEGS 30296 - Glasspack Header Muffler With 3 in. Collector [3 in. Turndown Outlet]
JEGS High Performance
16
$38.35
INSERT EXHAUST | 1S5738
Heavy Duty Kits
$38.35
INSERT EXHAUST | 1S5738
Heavy Duty Kits
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Shop Open Header Muffler Inserts

Sponsored
About our ads
$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
$116.99
Speedway Lake-Style Header Collector Muffler Inserts, 4 Inch
Speedway Motors
11
$116.99
Speedway Lake-Style Header Collector Muffler Inserts, 4 Inch
Speedway Motors
11
$50.99
Speedway Muffler Inserts For 26 Inch Header Collector Extensions
Speedway Motors
32
$50.99
Speedway Muffler Inserts For 26 Inch Header Collector Extensions
Speedway Motors
32
$54.99
Muffler Inserts For 3.5 X 20 Inch Header Collector Extensions
Speedway Motors
44
$54.99
Muffler Inserts For 3.5 X 20 Inch Header Collector Extensions
Speedway Motors
44
$25.29
$28.10
Patriot Exhaust H3844: Patriot Muffler Inserts
Summit Racing
52
$25.29
$28.10
Patriot Exhaust H3844: Patriot Muffler Inserts
Summit Racing
52
$44.22
Quiet Core Insert For WR Edition Exhaust
Weller Racing
$44.22
Quiet Core Insert For WR Edition Exhaust
Weller Racing
$20.99
Speedway Header Collector Muffler Insert, 3 Inch
Speedway Motors
15
$20.99
Speedway Header Collector Muffler Insert, 3 Inch
Speedway Motors
15
$48.42
Patriot Exhaust H3842 Side Tube Muffler Insert
Amazon.com
Free shipping
$48.42
Patriot Exhaust H3842 Side Tube Muffler Insert
Amazon.com
Free shipping
$219.99
Patriot Exhaust H3845 Muffler Inserts For Traditional Lakester Headers 2" Core 3 1/2" Cones, H3845
Advance Auto Parts
2
$219.99
Patriot Exhaust H3845 Muffler Inserts For Traditional Lakester Headers 2" Core 3 1/2" Cones, H3845
Advance Auto Parts
2
$199.99
Quiet Muffler Insert For 7" Stacks | Dynaflex Products
Iowa 80
$199.99
Quiet Muffler Insert For 7" Stacks | Dynaflex Products
Iowa 80
$48.40
Patriot Exhaust H7244 3" Exhaust Collector Reducer
Amazon.com
69
Free shipping
$48.40
Patriot Exhaust H7244 3" Exhaust Collector Reducer
Amazon.com
69
$116.99
$134.54
Speedway Lake-Style Header Collector Muffler Inserts, 4 Inch
eBay
2
13% off
$116.99
$134.54
Speedway Lake-Style Header Collector Muffler Inserts, 4 Inch
eBay
2
$134.99
$150.64
Speedway Motors 3.5 Inch Lake-Style Header Muffler Inserts: 6-Sided
eBay
7
10% off
$134.99
$150.64
Speedway Motors 3.5 Inch Lake-Style Header Muffler Inserts: 6-Sided
eBay
7
$154.99
YOLANDO 2.5'' Custom Exhaust Kit Universal Mild Steel Tubing 16 Gauge Mandrel Bend Pipe Straight & U-Bend (16PCS, 2 Packs)
Amazon.com
571
Free shipping
$154.99
YOLANDO 2.5'' Custom Exhaust Kit Universal Mild Steel Tubing 16 Gauge Mandrel Bend Pipe Straight & U-Bend (16PCS, 2 Packs)
Amazon.com
571
$54.40
$60.45
Patriot Exhaust H3840: Patriot Muffler Inserts
Summit Racing
3
10% off
$54.40
$60.45
Patriot Exhaust H3840: Patriot Muffler Inserts
Summit Racing
3
$134.99
Speedway Motors 3.5 Inch Lake-Style Header Muffler Inserts: 6-Sided Louvered
US eBay
7
Free shipping
$134.99
Speedway Motors 3.5 Inch Lake-Style Header Muffler Inserts: 6-Sided Louvered
US eBay
7
$219.00
3"" Fenderwell And Undercar Slip In Turn Out Header Muffler Inserts (Pair)
eBay.com
Free shipping
$219.00
3"" Fenderwell And Undercar Slip In Turn Out Header Muffler Inserts (Pair)
eBay.com
Free shipping
$40.10
$44.55
Patriot Exhaust H3842: Patriot Muffler Inserts
Summit Racing
4
$40.10
$44.55
Patriot Exhaust H3842: Patriot Muffler Inserts
Summit Racing
4