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Original 40 Series - 3" / 2.5" Dual - 430402

Retail: $97.24
Your Price: $85.86
You Save: $11.38 (12 %)
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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 aluminized steel and fully MIG welded for maximum durability.

  • Durable fully welded 16 gauge aluminized steel
  • Aggressive Sound Exterior Exhaust Tone
  • Noticeable interior resonance
  • Excellent Street/Strip and Off Road application
Product Attributes
Sound Level Aggressive Sound Inlet Connection Type Pipe Connection
Fitment Universal Shape Oval
Overall Length (in) 19 Outlet Position Dual
Outlet Diameter (in) 2.5 Outlet Connection Type Pipe Connection
Muffler Type Reflection Muffler Series 40 Series
Mount Type Uses New Hangers (Not Included) Material Aluminized Steel
Inlet Position Center Inlet Diameter (in) 3
Color Gray Body Width (in) 9.75
Body Length (in) 13 Body Diameter (in) 2.25
Automotive Item Grade High Performance Body Height (in) 4


Item Number: 430402
Manufacturer: Flowmaster
Manufacturer Part No: 430402

Product Reviews

(1 Rating, 1 Review) Average Rating:
Buy this Muffler!!!
(Unknown) 5/30/2008 12:41 AM
This is the most aggressive sounding muffler available! I have had at least 5 different dual exhaust setups on my 2-door Tahoe and the Flowmaster 40 series simply demands attention and respect!

Quantity Discounts - Order a quantity in the range below to receive the discount

2 to 6$81.56
7 to 20$77.27