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Most Popular Flowmaster 8042443 40 Series Muffler 409s - 2.25 Offset In / 2.25 Offset Out - Aggressive Sound Mega Pack [F8oV3LXc]

$26.99 $86.99 -69%

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 durab

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Most Popular Flowmaster 8042443 40 Series Muffler 409s - 2.25 Offset In / 2.25 Offset Out - Aggressive Sound Mega Pack [F8oV3LXc]

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.
  • Durable Fully Welded 409 Stainless Steel
  • Aggressive Sound Exterior Exhaust Tone
  • Noticeable Interior Resonance
  • Excellent Street/Strip And Off Road Application

Additional Attributes:

  • GTIN: 00700042022540
  • Automotive Item Grade: High Performance
  • Body Height: 4.000 in.
  • Body Length: 13.000 in.
  • Body Width: 9.750 in.
  • Color: Black
  • Fitment: Universal
  • Inlet Connection Type: Pipe
  • Inlet Diameter: 2.250 in.
  • Inlet Inside Diameter: 2.250 in.
  • Inlet Outside Diameter: 2.250 in.
  • Inlet Position: Offset
  • Inlet Type: Single Offset
  • Main Piping Diameter: OEM
  • Material: Stainless Steel
  • Mount Type: Uses New Hangers (Not Included)
  • Muffler Series: 40 Series
  • Muffler Type: Reflection
  • Outlet Connection Type: Pipe
  • Outlet Diameter: 2.500 in.
  • Outlet Outside Diameter: 2.250 in.
  • Outlet Position: Offset
  • Outlet Type: Single Offset Outlet
  • Overall Length: 19.000 in.
  • Shape: Oval
  • Sound Level: Aggressive
  • Tip Quantity: 0
  • WARNING CA Proposition 65: Yes
  • WARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Packaging:

  • Quantity of Each: 1
  • Package UOM: EA
  • Dimension: 20.5000 x 10.0000 x 4.5000 inches

What Our Customers Say

January 25, 2026

Absolutely no complaints!

A great gadget that is very useful.

- Pryderi F..

January 25, 2026

Absolutely no complaints!

This has made a huge positive impact.

- Urban H..

January 25, 2026

Absolutely no complaints!

I'm genuinely thrilled with the results.

- Bastian H..

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