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Flowmaster

Flowmaster Dodge Ram 1500 SLT 4.7L 40 Series Muffler

MPN: 43043 Catalog #: 001067653 Category: Muffler Check Vehicle Fitment

Product Details

Flowmaster Chevrolet Blazer Cheyenne 5.7L 40 Series Muffler, Flowmaster Chevrolet Blazer Silverado 5.7L 40 Series Muffler, Flowmaster Chevrolet Blazer Base 5.7L 40 Series Muffler, Flowmaster Chevrolet Blazer Silverado Sport 5.7L 40 Series Muffler, Flowmaster Chevrolet Camaro 40 Series Muffler, Flowmaster Chevrolet Tahoe Base 5.7L 40 Series Muffler, Flowmaster Chevrolet Tahoe LS 5.7L 40 Series Muffler, Flowmaster Chevrolet Tahoe LT 5.7L 40 Series Muffler, Flowmaster Chevrolet Tahoe Base 5.7L 40 Series Muffler, Flowmaster Chevrolet Tahoe LS 5.7L 40 Series Muffler, Flowmaster Chevrolet Tahoe LT 5.7L 40 Series Muffler, Flowmaster Chevrolet C1500 Cheyenne 7.4L 40 Series Muffler, Flowmaster Chevrolet C1500 Silverado 7.4L 40 Series Muffler, Flowmaster Chevrolet C1500 WT 7.4L 40 Series Muffler, Flowmaster Chevrolet C1500 454 SS 7.4L 40 Series Muffler, Flowmaster Chevrolet C1500 Base 5.7L 40 Series Muffler, Flowmaster Chevrolet C1500 Cheyenne 5.7L 40 Series Muffler, Flowmaster Chevrolet C1500 Silverado 5.7L 40 Series Muffler, Flowmaster Chevrolet C1500 WT 5.7L 40 Series Muffler, Flowmaster Chevrolet C1500 Base 5.0L 40 Series Muffler, Flowmaster Chevrolet C1500 Cheyenne 5.0L 40 Series Muffler, Flowmaster Chevrolet C1500 Silverado 5.0L 40 Series Muffler, Flowmaster Chevrolet C1500 WT 5.0L 40 Series Muffler, Flowmaster Chevrolet C1500 LS 5.0L 40 Series Muffler, Flowmaster Chevrolet C2500 Cheyenne 7.4L 40 Series Muffler, Flowmaster Chevrolet C2500 Silverado 7.4L 40 Series Muffler, Flowmaster Chevrolet C2500 Base 5.7L 40 Series Muffler, Flowmaster Chevrolet C2500 Base 7.4L 40 Series Muffler, Flowmaster Chevrolet C2500 Cheyenne 5.7L 40 Series Muffler, Flowmaster Chevrolet C2500 Silverado 5.7L 40 Series Muffler, Flowmaster Chevrolet C2500 WT 5.7L 40 Series Muffler, Flowmaster Chevrolet C2500 WT 5.0L 40 Series Muffler, Flowmaster Chevrolet C2500 WT 7.4L 40 Series Muffler, Flowmaster Chevrolet C2500 Base 5.0L 40 Series Muffler, Flowmaster Chevrolet C2500 Cheyenne 5.0L 40 Series Muffler, Flowmaster Chevrolet C2500 Silverado 5.0L 40 Series Muffler, Flowmaster Chevrolet C2500 WT 5.0L 40 Series Muffler, Flowmaster Chevrolet K1500 Base 5.7L 40 Series Muffler, Flowmaster Chevrolet K1500 Cheyenne 5.7L 40 Series Muffler, Flowmaster Chevrolet K1500 Silverado 5.7L 40 Series Muffler, Flowmaster Chevrolet K1500 WT 5.7L 40 Series Muffler, Flowmaster Chevrolet K1500 Base 5.0L 40 Series Muffler, Flowmaster Chevrolet K1500 Cheyenne 5.0L 40 Series Muffler, Flowmaster Chevrolet K1500 Silverado 5.0L 40 Series Muffler, Flowmaster Chevrolet K1500 WT 5.0L 40 Series Muffler, Flowmaster Chevrolet K1500 LS 5.0L 40 Series Muffler, Flowmaster Chevrolet K2500 Cheyenne 7.4L 40 Series Muffler, Flowmaster Chevrolet K2500 Silverado 7.4L 40 Series Muffler, Flowmaster Chevrolet K2500 Base 5.7L 40 Series Muffler, Flowmaster Chevrolet K2500 Base 5.0L 40 Series Muffler, Flowmaster Chevrolet K2500 Base 7.4L 40 Series Muffler, Flowmaster Chevrolet K2500 Cheyenne 5.7L 40 Series Muffler, Flowmaster Chevrolet K2500 Cheyenne 5.0L 40 Series Muffler, Flowmaster Chevrolet K2500 Silverado 5.7L 40 Series Muffler, Flowmaster Chevrolet K2500 Silverado 5.0L 40 Series Muffler, Flowmaster Chevrolet K2500 WT 5.7L 40 Series Muffler, Flowmaster Chevrolet K2500 WT 5.0L 40 Series Muffler, Flowmaster Chevrolet K2500 WT 7.4L 40 Series Muffler, Flowmaster Chevrolet K2500 40 Series Muffler, Flowmaster Chevrolet K2500 Cheyenne 5.0L 40 Series Muffler, Flowmaster Chevrolet K2500 Silverado 5.0L 40 Series Muffler, Flowmaster Chevrolet K2500 WT 5.0L 40 Series Muffler, Flowmaster Chrysler 300 C SRT8 6.1L 40 Series Muffler, Flowmaster Chrysler 300 SRT8 6.4L 40 Series Muffler, Flowmaster Chrysler Aspen Limited 4.7L 40 Series Muffler, Flowmaster Chrysler Aspen Limited 5.7L 40 Series Muffler, Flowmaster Dodge Challenger SRT8 6.1L 40 Series Muffler, Flowmaster Dodge Challenger SRT8 6.4L 40 Series Muffler, Flowmaster Dodge Charger SRT8 6.1L 40 Series Muffler, Flowmaster Dodge Charger SRT8 6.4L 40 Series Muffler, Flowmaster Dodge Magnum SRT8 6.1L 40 Series Muffler, Flowmaster Dodge Durango ST 4.7L 40 Series Muffler, Flowmaster Dodge Durango Limited 4.7L 40 Series Muffler, Flowmaster Dodge Durango Limited 5.7L 40 Series Muffler, Flowmaster Dodge Durango SLT 4.7L 40 Series Muffler, Flowmaster Dodge Durango SLT 5.7L 40 Series Muffler, Flowmaster Dodge Durango ST 5.7L 40 Series Muffler, Flowmaster Dodge Durango SXT 4.7L 40 Series Muffler, Flowmaster Dodge Durango Adventurer 4.7L 40 Series Muffler, Flowmaster Dodge Durango Adventurer 5.7L 40 Series Muffler, Flowmaster Dodge Durango SXT 5.7L 40 Series Muffler, Flowmaster Dodge Durango Limited Hybrid 5.7L 40 Series Muffler, Flowmaster Dodge Ram 1500 TRX4 4.7L 40 Series Muffler, Flowmaster Dodge Ram 1500 SLT 4.7L 40 Series Muffler, Flowmaster Dodge Ram 1500 ST 3.7L 40 Series Muffler, Flowmaster Dodge Ram 1500 ST 4.7L 40 Series Muffler, Flowmaster Dodge Ram 1500 SXT 3.7L 40 Series Muffler, Flowmaster Dodge Ram 1500 SXT 4.7L 40 Series Muffler, Flowmaster Dodge Ram 1500 TRX 4.7L 40 Series Muffler, Flowmaster Dodge Ram 1500 TRX4 4.7L 40 Series Muffler, Flowmaster Ford Mustang GT 5.0L 40 Series Muffler, Flowmaster Ford Mustang Boss 302 5.0L 40 Series Muffler, Flowmaster Ford Excursion Limited 5.4L 40 Series Muffler, Flowmaster Ford Excursion Limited 6.8L 40 Series Muffler, Flowmaster Ford Excursion XLT 5.4L 40 Series Muffler, Flowmaster Ford Excursion XLT 6.8L 40 Series Muffler, Flowmaster Ford Excursion Eddie Bauer 5.4L 40 Series Muffler, Flowmaster Ford Excursion Eddie Bauer 6.8L 40 Series Muffler, Flowmaster Ford Excursion XLS 5.4L 40 Series Muffler, Flowmaster Ford Excursion XLS 6.8L 40 Series Muffler, Flowmaster Ford F-250 Super Duty Harley-Davidson Edition 6.8L 40 Series Muffler, Flowmaster Ford F-350 Super Duty Harley-Davidson Edition 6.8L 40 Series Muffler, Flowmaster Ford F-250 Super Duty King Ranch 5.4L 40 Series Muffler, Flowmaster Ford F-250 Super Duty King Ranch 6.8L 40 Series Muffler, Flowmaster Ford F-250 Super Duty Lariat 5.4L 40 Series Muffler, Flowmaster Ford F-250 Super Duty Lariat 6.8L 40 Series Muffler, Flowmaster Ford F-250 Super Duty XL 5.4L 40 Series Muffler, Flowmaster Ford F-250 Super Duty XL 6.8L 40 Series Muffler, Flowmaster Ford F-250 Super Duty XLT 5.4L 40 Series Muffler, Flowmaster Ford F-250 Super Duty XLT 6.8L 40 Series Muffler, Flowmaster Ford F-350 Super Duty King Ranch 5.4L 40 Series Muffler, Flowmaster Ford F-350 Super Duty King Ranch 6.8L 40 Series Muffler, Flowmaster Ford F-350 Super Duty Lariat 5.4L 40 Series Muffler, Flowmaster Ford F-350 Super Duty Lariat 6.8L 40 Series Muffler, Flowmaster Ford F-350 Super Duty XL 5.4L 40 Series Muffler, Flowmaster Ford F-350 Super Duty XL 6.8L 40 Series Muffler, Flowmaster Ford F-350 Super Duty XLT 5.4L 40 Series Muffler, Flowmaster Ford F-350 Super Duty XLT 6.8L 40 Series Muffler, Flowmaster Pontiac Firebird 40 Series Muffler, Flowmaster GMC Yukon Base 5.7L 40 Series Muffler, Flowmaster GMC Yukon SLE 5.7L 40 Series Muffler, Flowmaster GMC Yukon SLT 5.7L 40 Series Muffler, Flowmaster GMC Yukon SLE 5.7L 40 Series Muffler, Flowmaster GMC Yukon SLT 5.7L 40 Series Muffler, Flowmaster GMC C1500 Sierra SL 5.7L 40 Series Muffler, Flowmaster GMC C1500 Sierra SLE 5.7L 40 Series Muffler, Flowmaster GMC C1500 Sierra SLT 5.7L 40 Series Muffler, Flowmaster GMC C1500 Sierra Special 5.7L 40 Series Muffler, Flowmaster GMC C1500 Sierra Special 5.0L 40 Series Muffler, Flowmaster GMC C1500 Sierra SL 5.0L 40 Series Muffler, Flowmaster GMC C1500 Sierra SLE 5.0L 40 Series Muffler, Flowmaster GMC C1500 Sierra SLT 5.0L 40 Series Muffler, Flowmaster GMC C1500 Sierra GT 5.0L 40 Series Muffler, Flowmaster GMC C2500 Sierra 7.4L 40 Series Muffler, Flowmaster GMC C2500 Sierra SLX 7.4L 40 Series Muffler, Flowmaster GMC C2500 Sierra SLE 7.4L 40 Series Muffler, Flowmaster GMC C2500 Sierra SL 5.7L 40 Series Muffler, Flowmaster GMC C2500 Sierra SL 7.4L 40 Series Muffler, Flowmaster GMC C2500 Sierra SLE 5.7L 40 Series Muffler, Flowmaster GMC C2500 Sierra SLT 5.7L 40 Series Muffler, Flowmaster GMC C2500 Sierra SLT 7.4L 40 Series Muffler, Flowmaster GMC C2500 Sierra SL 5.0L 40 Series Muffler, Flowmaster GMC C2500 Sierra SLE 5.0L 40 Series Muffler, Flowmaster GMC C2500 Sierra SLT 5.0L 40 Series Muffler, Flowmaster GMC K1500 Sierra SL 5.7L 40 Series Muffler, Flowmaster GMC K1500 Sierra SLE 5.7L 40 Series Muffler, Flowmaster GMC K1500 Sierra SLT 5.7L 40 Series Muffler, Flowmaster GMC K1500 Sierra Special 5.7L 40 Series Muffler, Flowmaster GMC K1500 Sierra Special 5.0L 40 Series Muffler, Flowmaster GMC K1500 Sierra SL 5.0L 40 Series Muffler, Flowmaster GMC K1500 Sierra SLE 5.0L 40 Series Muffler, Flowmaster GMC K1500 Sierra SLT 5.0L 40 Series Muffler, Flowmaster GMC K1500 Sierra SLS 5.7L 40 Series Muffler, Flowmaster GMC K1500 Sierra SLS 5.0L 40 Series Muffler, Flowmaster GMC K2500 Sierra 7.4L 40 Series Muffler, Flowmaster GMC K2500 Sierra SLX 7.4L 40 Series Muffler, Flowmaster GMC K2500 Sierra SLE 7.4L 40 Series Muffler, Flowmaster GMC K2500 Sierra SL 5.7L 40 Series Muffler, Flowmaster GMC K2500 Sierra SL 5.0L 40 Series Muffler, Flowmaster GMC K2500 Sierra SL 7.4L 40 Series Muffler, Flowmaster GMC K2500 Sierra SLE 5.7L 40 Series Muffler, Flowmaster GMC K2500 Sierra SLE 5.0L 40 Series Muffler, Flowmaster GMC K2500 Sierra SLT 5.7L 40 Series Muffler, Flowmaster GMC K2500 Sierra SLT 5.0L 40 Series Muffler, Flowmaster GMC K2500 Sierra SLT 7.4L 40 Series Muffler, Flowmaster GMC K2500 40 Series Muffler, Flowmaster GMC K2500 Sierra SL 5.0L 40 Series Muffler, Flowmaster GMC K2500 Sierra SLE 5.0L 40 Series Muffler, Flowmaster GMC K2500 Sierra SLT 5.0L 40 Series Muffler

Flowmaster Chevrolet Blazer Base 5.7L 40 Series Muffler, Flowmaster Dodge Ram 1500 SLT 4.7L 40 Series Muffler

The Original 40 series muffler delivers an aggressive exterior and interior tone. If youre looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.

SPECS

40 Series Muffler - 3.00 Offset In / 3.00 Offset Out - Aggressive Sound

Universal 40 Series Muffler - 3.00 Offset In / 3.00 Offset Out - Aggressive Sound

Muffler - Original 40 Series - 3 in Offset Inlet - 3 in Offset Outlet - 13 x 9.75 x 4 in Oval Body - 19 in Long - Steel - Black Paint - Universal - Each

2007–2010 Flowmaster Dodge Ram 1500 ST 3.7L 40 Series Muffler

2007–2010 Flowmaster Dodge Ram 1500 ST 4.7L 40 Series Muffler

2008 Flowmaster Dodge Ram 1500 SXT 3.7L 40 Series Muffler

2008 Flowmaster Dodge Ram 1500 SXT 4.7L 40 Series Muffler

2009–2010 Flowmaster Dodge Ram 1500 TRX 4.7L 40 Series Muffler

2009–2010 Flowmaster Dodge Ram 1500 TRX4 4.7L 40 Series Muffler

2007 Flowmaster Dodge Ram 1500 TRX4 4.7L 40 Series Muffler

Flowmaster Chevrolet Blazer Base 5.7L 40 Series Muffler; Flowmaster Chevrolet C1500 454 SS 7.4L 40 Series Muffler; Flowmaster Chevrolet C2500 Base 5.7L 40 Series Muffler; Flowmaster Chevrolet Camaro 40 Series Muffler; Flowmaster Chevrolet K1500 Base 5.7L 40 Series Muffler; Flowmaster Chevrolet K2500 Base 5.7L 40 Series Muffler; Flowmaster Chevrolet Tahoe Base 5.7L 40 Series Muffler; Flowmaster Chrysler 300 C SRT8 6.1L 40 Series Muffler; Flowmaster Chrysler Aspen Limited 4.7L 40 Series Muffler; Flowmaster Dodge Challenger SRT8 6.1L 40 Series Muffler; Flowmaster Dodge Charger SRT8 6.1L 40 Series Muffler; Flowmaster Dodge Durango Adventurer 4.7L 40 Series Muffler; Flowmaster Dodge Magnum SRT8 6.1L 40 Series Muffler; Flowmaster Ford Excursion Eddie Bauer 5.4L 40 Series Muffler; Flowmaster Ford F-250 Super Duty Harley-Davidson Edition 6.8L 40 Series Muffler; Flowmaster Ford Mustang Boss 302 5.0L 40 Series Muffler; Flowmaster GMC C1500 Sierra GT 5.0L 40 Series Muffler; Flowmaster GMC K1500 Sierra SL 5.7L 40 Series Muffler; Flowmaster GMC K2500 Sierra 7.4L 40 Series Muffler; Flowmaster GMC Yukon Base 5.7L 40 Series Muffler; Flowmaster Pontiac Firebird 40 Series Muffler

Vehicle Fitment

Please verify year, make, model, and any notes before ordering.

Engine Compatibility

GM - LSMatched variant: LS

GM Gen III/IV V8; LS1/LS2/LS3/LS6/LS7/LS9/LSA/LSX

GM - LTMatched variant: LT

GM Gen V Small Block; LT1/LT4/LT5

Fitment note: Engine compatibility is provided as a guide. Please verify all fitment details before ordering.

Product Specs

Brand
Flowmaster
Part Number
43043
Catalog Number
001067653
Product Line
40 Series
Category
Exhaust
Type
Muffler
UPC / Barcode
700042010424
Length
20.25 in
Width
10.30 in
Height
4.45 in
Weight
9.93 lb
Freight / LTL
175.00
Ship Alone
No
Air Restricted
No
Hazmat
No
Chemical
No
Non-Returnable
No
Case Quantity
1
Kit
No

Shipping & Availability

Current status 331 Available - Ready to ship
Estimated timing Usually ships within 24hrs

This item is showing available inventory. Most in-stock performance parts ship quickly, but timing can vary by warehouse, vendor cut-off time, holidays, and carrier pickup.

Inventory shown: 331 available as of 6/4/2026.

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