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Exhaust Muffler

The Original 40 series muffler delivers an aggressive exterior and interior tone. If you're looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
Outlet TypeDual Outlet
Inlet PositionCenter
Muffler Series40 Series
Sound LevelAggressive
Body Length13.000 in.
FitmentUniversal
California Proposition 65 Chemical Name 2Chromium (hexavalent compounds)
Overall Length19.000 in.
TitleFlowmaster 80430402 40 Series Muffler 409S - 3.00 Center In / 2.50 Dual Out - Aggressive Sound
Outlet Diameter2.500 in.
Automotive Item GradeHigh Performance
Body Height4.000 in.
Inlet Connection TypePipe
California Proposition 65 Chemical Name 1Nickel (metallic)
Tip Quantity0
ColorBlack
MaterialStainless Steel
Body Width9.750 in.
Outlet Outside Diameter2.500 in.
Inlet Outside Diameter3.000 in.
Main Piping DiameterOEM
Muffler TypeReflection
Inlet Diameter3.000 in.
Mount TypeUses New Hangers (Not Included)
WARNING CA Proposition 65 MessageWARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Inlet Inside Diameter3.000 in.
ShapeOval
Outlet PositionDual
Outlet Connection TypePipe
WARNING CA Proposition 65Yes
Inlet TypeSingle Center
ColorGray
Weight0
BrandFlowmaster
Part Number80430402
Line CodeFLO
UPC700042022595
TerminologyExhaust Muffler
For warranty information please contact Auto-Wares.