40 Series - 2.50 Offset In / 2.50 Offset Out - Aggressive Sound 1974-chevrolet-g20-van-esi7926355 Pulley Kit - 2 Groove

Pulley Kit - 2 Groove V-Belt - 30 Percent Reduction - Aluminum - Natural - Small Block Chevy - Kit

5 in Long - High Temperature - Braided Fiberglass - Black - Set of 4

1 - Pull Down Adjust - Bolt-In / Wrap Around - Individual Harness - Silver Gray - Kit

080 in Thick Wall - Chromoly - Small Block Mopar - Each

5 in Wide - 20 Degree Layback - Cover Included - Aluminum - Natural - Kit

40 Series - 2.50 Offset In / 2.50 Offset Out - Aggressive Sound 1974-chevrolet-g20-van-esi7926355 Pulley Kit - 2 GrooveThe 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.