Flowmasters 50 Series H.D. muffler is designed primarily for today's higher horsepower trucks. This muffler will perform well on various vehicles when a deeper, more aggressive tone is desired. This new muffler features a 4.00-inch internal design, which is ideal for trucks with modified engines. It is built from 16 gauge aluminized steel and comes with various inlet/outlet configurations.

Flowmaster 50-Series HD Mufflers