Flowmaster® 40 Series Muffler 2.25 Offset IN / 2.25 Offset OUT
The American Thunder 40 Series is the most aggressive sounding street and strip muffler in Flowmaster’s product line. The 40 Series will generate extreme interior resonance within the vehicle. If you want to really hear your exhaust system inside as well as outside your vehicle the 40 Series is for you. 40 Series Muffler, 2.25″ IN (Offest) / OUT (Offset). Sold each.