40 Series Chambered Muffler 409S - 2.25" Inlet Offset/Outlet Offset Sentra The Super Twin is for

The Super Twin is for street and track use in cars with extreme horsepower and torque (700-1500 ft lbs tq)

Sold in weight-matched sets within 2 grams

Do you have a K20 or K24 in your 8th Gen Civic

Single 3-1/2" Center Outlet

as they tend to accentuate track features

40 Series Chambered Muffler 409S - 2.25" Inlet Offset/Outlet Offset Sentra The Super Twin is forThe Original 40 series muffler delivers an aggressive exterior and interior tone. If you're looking for that original Flowmaster sound this muffler is for you. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability. Features: Durable fully welded 409SS stainless steel Aggressive Sound Exterior Exhaust Tone Noticeable interior resonance Excellent Street Strip and Off Road application Tech Resources Warranty for Part#