+ All Soul Performance Products exhaust parts are backed by a renowned Lifetime Warranty for both street and track use
this set optimizes exhaust flow for maximum horsepower gains
The BMW 3 Series adopts a new EfficientLightweight body structure
but also increases the high-pitched resonance of the exhaust
Nissans legendary supercar has been one of the most popular JDM sports cars with heritage in the earlier Skyline models
Kline Innovation Porsche 992 GT3 valvetronic system - SS Tips 911 Carrera S/4S 997 + All Soul Performance ProductsThe Sound The first aspect of the stock exhaust that really holds the sound back, is the 600cpsi catalysts, and OPF filter, removal of these, and the addition of HJS high flow race catalysts, or our long tube header with decat design, opens the sound up significantly. the gases then pass through one of two transits in the silencer section. On valve open the transit is completely free flow for maximum sound, on valve closed, the gasses pass through our