Availability
Mufflers
Muffler, 4.00 in. Inlet/4.00 in. Outlet, 7 in. Round Case, 20 in Long Overall, Satin Stainless Steel, Each
Part Number: MPE-12775
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Widowmaker, 4.00 in. Center, 4.00 in. Center, 10.00 in. Case Length, 5.00 in. Diameter, Stainless Steel, Brushed, Each
Part Number: BWE-BW0013-4
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Replacement, For Summit® 4" Aluminized Steel Diesel Kits, Each
Part Number: SUM-630100
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Heavy Duty, 4 in. Inlet/4 in. Outlet, Stainless Steel, Natural, Each
Part Number: WLK-22572
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Heavy Duty, 4 in. Inlet/4 in. Outlet, Stainless Steel, Each
Part Number: WLK-21172
Estimated Ship Date: Today
Estimated Ship Date: Today
Mufflers, Heavy-Duty, Steel, Aluminized, 39.000 in. Overall Length, Blue Bird, Chevy, GMC, Each
Part Number: WLK-22643
Estimated Ship Date: Today
Estimated Ship Date: Today
Mufflers, M-80, Round Case, Steel, Red Powdercoated, Single 4.00 in. Center Inlet/Outlet, 19.000 in. Overall Length, Each
Part Number: IMM-M80400
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Replacement, 4.0 in. Inlet/4.0 in. Outlet, 37.0 in. Length, Steel, Natural, Each
Part Number: WLK-21471
Estimated Ship Date: Today
Estimated Ship Date: Today
Mufflers, EMI Inline XX, Marine, Baffled, Stainless Steel, Natural, Single 4.00 in. Center Inlet/Outlet, 6.000 in. Overall Length, Pair
Part Number: EDM-102-12
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Outlaw, Shorty, 4 in. Inlet Diameter, 4 in. Outlet Diameter, Steel, Black, Each
Part Number: FLO-15440S
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, XR-1, 4 in. Inlet/4 in. Outlet, Stainless Steel, Each
Part Number: BOR-40741
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Mufflers, Heavy-Duty, Steel, Aluminized, 40.000 in. Overall Length, Mack, Each
Part Number: WLK-21838
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Race Series, 4.00 in. Inlet/4.00 in. Outlet, Stainless Steel, Polished, Each
Part Number: MPE-14163
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Replacement, 4 in. Inlet/4 in. Outlet, Steel, Aluminized, Each
Part Number: WLK-22958
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, TPV, Round, Stainless, Polished, Turbo-style, 4.0 in. Center Inlet, 4 in. Outlet, 23 in. Length
Part Number: VPE-1091
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Ultra Flo Welded, Oval, 4 in. Inlet/4 in. Outlet, Stainless Steel, Chevy, GMC/Hummer, Each
Part Number: WLK-17557
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Heavy-Duty, Oval, Steel, Aluminized, 4.00 in. Offset Inlet/Outlet, 34.00 in. Overall Length, Each
Part Number: WLK-22004
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Glasspack, 4.000 in. Inlet/4.000 in. Outlet, Steel, Red, Each
Part Number: IMM-87528CB
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Varex, Oval, 304 Stainless Steel, Brushed, 4.00 in. Center Inlet/Outlet, 24.50 in. Overall Length, Each
Part Number: XFO-VMK-18-400
Estimated Ship Date: Today
Estimated Ship Date: Today
Mufflers, Race, Round Case, Steel, Black, Single 4.00 in. Center Inlet/Outlet, 8.000 in. Overall Length, Each
Part Number: SCH-84040
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Superflow, 4.00 in. Inlet/4.00 in. Outlet, Stainless Steel, Polished, Each
Part Number: GIB-788040S
Not Yet Reviewed
Estimated Ship Date: May 15, 2026 if ordered today
Estimated Ship Date: May 15, 2026 if ordered today
Walker Heavy Duty Muffler
Part Number: WLK-22664
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler 4" Inlet /Outlet 24" Body 30" Overall, T409 Universal Replaces all 30" overall length muff
Part Number: MBR-M91031
Estimated Ship Date: Today
Estimated Ship Date: Today
Mufflers, Quiet-Flow SS, Stainless Steel, Natural, 17.000 in. Overall Length, Dodge, Ram, Each
Part Number: WLK-21649
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Quiet-Flow SS, Round, Turbo-style, Steel, Aluminized, Dodge, 5.9L Diesel, Each
Part Number: WLK-21443
Estimated Ship Date: May 22, 2026 if ordered today
Estimated Ship Date: May 22, 2026 if ordered today
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