SpeedFactory Upgraded D-Series Shifter Spring Kit for D15/D16

The SpeedFactory Racing LT-5 delivers aggressive performance with minimal restriction. This 3-inch race muffler features a straight-through design that maximizes exhaust flow while maintaining a commanding exhaust note. Built from premium stainless steel construction, it resists corrosion and withstands high-temperature environments. The compact LT-5 core fits tight engine bays without sacrificing scavenging efficiency. Ideal for track-focused builds seeking maximum horsepower gains and responsive throttle characteristics.