40 Series - 2.50 Offset In / 2.50 Center Out - Aggressive Sound 1997-saturn-sw2-esi1668490 90 in Extended - Double

90 in Extended - Double Adjustable - Threaded Aluminum - Blue Anodized - Rear - Each

70 Ratio - Full Roller - Aluminum - Natural - AFR Heads - Big Block Chevy - Set of 16

188 in Thick - Steel Core Silicone Rubber - Mopar 426 Hemi - Each

Vacuum Advance Lock Out - Aluminum - GM HEI Distributors - Each

Header Bolt - 3/8-16 in Thread - 1 in Long - Hex Head - Chromoly - Black Oxide - Big Block Chevy - Set of 16

40 Series - 2.50 Offset In / 2.50 Center Out - Aggressive Sound 1997-saturn-sw2-esi1668490 90 in Extended - DoubleThe 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.