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πŸ”Š flowmaster 425403: high-performance 2.50" in(d)/3" out(c) 40 series muffler for enhanced exhaust sound logo

πŸ”Š Flowmaster 425403: High-Performance 2.50" In(D)/3" Out(C) 40 Series Muffler for Enhanced Exhaust Sound Review

3

Β·

Very good

Revainrating 4.5 out of 5Β Β 
RatingΒ 
4.3
🌫️ Exhaust & Emissions, πŸ› οΈ Replacement Parts

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Details

BrandFlowmaster
MaterialAlloy Steel
Item Dimensions LxWxH20.2 x 9.9 x 4.6 inches
Item Weight10.21 Pounds
ShapeUniversal

Description of πŸ”Š Flowmaster 425403: High-Performance 2.50" In(D)/3" Out(C) 40 Series Muffler for Enhanced Exhaust Sound

Excellent Street/Strip and Off Road application. Noticeable interior resonance. Aggressive Sound Exterior Exhaust Tone. Durable fully welded 16 gauge aluminized steel. MIG welded for maximum durability.

Reviews

Global ratings 3
  • 5
    2
  • 4
    0
  • 3
    1
  • 2
    0
  • 1
    0

Type of review

Revainrating 5 out of 5

Deep bass and not raspy

This is a great dual 2.5 inch input and 3 inch output. Past experience led me to purchase this and it fits my SS Suburban perfectly. You can tell now that it's a Big Block Chevy 🀣!

Pros
  • Satisfied so far
Cons
  • old

Revainrating 5 out of 5

The sound and quality of the Flowmaster!

Good deep tone. Excellent construction. Only driven a few miles and a few months but no signs of corrosion. Consumption: 98 5.7 K2500 GMC. Note: The stock pipes on this muffler are slightly spaced out, so you'll have to get creative. It won't just slip. If you drive with a stock exhaust you will be happy. Coming from straight tubes you'll wonder where all the sound is, but otherwise you'll notice a positive difference.

Pros
  • Nice to use
Cons
  • The list will be long.

Revainrating 3 out of 5

Could be better but definitely not bad

The Flowmaster is legendary for its quality so no surprises but I was a little overwhelmed by the difference after installing this muffler made to improve the sound quality of became my 19 tundra. I watched videos on YouTube and read many reviews before deciding to buy this particular muffler. I wanted something more aggressive than a TRD exhaust. This muffler is close to TRD but not as aggressive as I was hoping. I'd like to go a step further on the aggressive side to get that nice deep V8…

Pros
  • Looking forward to it
Cons
  • Operating speed