The original 40 series muffler delivers an aggressive exterior and interior tone. If you are 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 And Powerful Exterior Exhaust Tone
Notable Interior Resonance
Excellent Street/Strip And Off Road Application
No Internal Packing To Blowout
Limited Lifetime Warranty
