40 Series Stainless Steel - 2.50 Offset In / 2.50 Offset Out - Aggressive Sound 1965-chevrolet-impala-esi8053336 100 in Long - Stainless

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40 Series Stainless Steel - 2.50 Offset In / 2.50 Offset Out - Aggressive Sound 1965-chevrolet-impala-esi8053336 100 in Long - StainlessThe 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 409S stainless steel and fully MIG welded for maximum durability.