Flowmaster 42543 40 Series Muffler - 2.50 Offset In / 2.50 Offset Out - Aggressive Sound
Flowmaster 42543 40 Series Muffler - 2.50 Offset In / 2.50 Offset Out - Aggressive Sound
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Flowmaster

Flowmaster 42543 40 Series Muffler - 2.50 Offset In / 2.50 Offset Out - Aggressive Sound

|9 ratings
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Key item features

  • Durable Construction: Made from fully welded 16 gauge aluminized steel for maximum durability.
  • Aggressive Sound: Delivers an aggressive exterior exhaust tone for a powerful sound experience.
  • Interior Resonance: Noticeable interior resonance enhances the driving experience.
  • Versatile Application: Ideal for street, strip, and off-road applications.
  • Original Design: The 40 Series muffler provides the classic Flowmaster sound.
  • Offset In/Out: Features 2.50 offset inlet and outlet for easy installation.
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Current price is $89.96
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4.8 out of 5 stars
stars9 ratings4 reviews
How item rating is calculated
  1. 5 stars78% (7)
  2. 4 stars22% (2)
  3. 3 stars0% (0)
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Showing 1-3 of 4 reviews

Dec 2, 2017
Dadams1911
5 out of 5 stars review

Flow master 40's

I bought these Mufflers over a month ago and I'm very happy with the sound and the durability. I will be buying another set for my GTO in the near future. Good job Jegs!!

Review from jegs.com
Helpful?4LH5F31E0QX349350105
Feb 7, 2019
Mopars5
5 out of 5 stars review

Great Product.

I have installed these series 40's on my Mopars for years. Love that throaty muscle car sound they produce and ease of installation. Inlet and outlet port sizing is spot on.

Review from jegs.com
Helpful?4LH5F31E0QX349350105
Oct 29, 2019
Aggie1974
5 out of 5 stars review

Just as advertised

After 12 years, it is hard to believe that I can buy the same mufflers for less than $100 a piece. Due to their sound and quality I had to buy them again for my 70 Chevelle SS.

Review from jegs.com
Helpful?4LH5F31E0QX349350105