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Flowmaster

Flowmaster 80430402 40 Series Chambered Muffler

Part # 80430402 Be the first to write a review

40 Series Stainless Steel - 3.00 Center In / 2.50 Dual Out - Aggressive Sound

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Flowmaster 80430402 40 Series Chambered Muffler

Estimated Ship Date: 07/20/2026
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$135.95
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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.

Features:

  • Durable fully welded 409SS stainless steel
  • Aggressive Sound Exterior Exhaust Tone
  • Noticeable interior resonance
  • Excellent Street/Strip and Off Road application
Brand Flowmaster
Emission Code5
Product TypeMufflers
WarrantyManufacturer's Limited Lifetime
UPC700042022595
Manufacturer Part Number80430402
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number80430402
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Warranty for Part# 80430402
Street Application Tech
Universal Muffler - Some adaptation may be required.
Manufacturer's Limited Lifetime: See Details
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