Ultimate performance upgrade - single exhaust exit eliminates unnecessary second exit, reducing weight and flow restriction. No other FIAT 124 Spider axle - back on the market outflows this system. Eliminates the heavy factory muffler to improve exhaust flow, horsepower and torque, resulting in a classic sportscar inspired exhaust tone without the drone. Removes heavy stock muffler (26 pounds vs. 12 pounds). 2 - 12, mandrel - bent, 304 stainless steel tubing for maximum performance, corrosion resistance, strength, and durability. 100 MIG - welded by certified craftsmen for race proven strength and durability. MIG - welding provides the strongest welds. OE - style bayonet hanger is used to maintain a stable pipe location that does not change over time.