Flowmaster 40 Series - 2.50" IN(D)/OUT(D) - Aggressive Sound 425404 1961-ford-country-squire-esi6137308 What material is the ALL10446

What material is the ALL10446 made from

Includes:(4) M11 x 2

How is the ALL36167 bung installed

Quick Release V-Ban Collar for ease of fitment & serviceability

3/4 Ton Pick-Up

Flowmaster 40 Series - 2.50" IN(D)/OUT(D) - Aggressive Sound 425404 1961-ford-country-squire-esi6137308 What material is the ALL10446The 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. Flowmaster 40 Series 2. 50" IN(D) OUT(D) Aggressive Sound 425404 Specifications: Description_ABR MUFF 2. 50IN Description_SHO FM40SRS DUAL D 2. 5 Description_INV 2. 50 IN(D) OUT(D) 40 SERIES