Flowmaster - 40 Series - 2.25" IN(C)/OUT(O) - Aggressive Sound Always verify safety rules with

Always verify safety rules with your sanctioning body

Battery - Lithium-ion - 12V - 680 Cranking amps - Top / Side Post Screw-In Terminals - 6

Maximum dyno gains of 21 hp and 23 lb

Intake Manifold - Square Bore - Dual Plane - Cathedral Port - Aluminum - Natural - Standard Deck - 8

Cap and Rotor Kit - HEI Style Terminal - Brass Terminals - Screw Down - Black - Non-Vented - Coil in Cap - Chevy V8 - Kit

Flowmaster - 40 Series - 2.25" IN(C)/OUT(O) - Aggressive Sound Always verify safety rules withThe 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.