Flowmaster's Super 40 Series Delta Flow Mufflers were developed for street/strip use. Utilizing Delta Flow Technology, these fully MIG-welded mufflers give the best performance to higher horsepower vehicles. Each Super 40 Series Delta Flow muffler contains a black, oversize case, which keeps the resonance down while the deep outside tone is sure to turn heads!
Deeper, richer tone than an original 40 Series muffler
Delta flow technology
Constructed of 16-gauge aluminized steel or 409S stainless steel