4-2-1 one -piece header systems deliver incredible low-to mid-range power gains, while improving ground clearance and reducing weight by eliminating the middle flanges. Our 4-2-1 one-piece headers are much lighter then stock systems and are on average two-pounds lighter than our two-piece systems.
4-2-1 design emphasizes low and mid-range power.
CAD-rendered, design with threaded flanges for easy installation.
4-2-1 design emphasizes low and mid-range power for street/strip applications.
CNC- mandrel bends with robotically-welded fittings deliver perfect fit.
CNC-machined flanges and O-ring seals eliminate leaks.
Equal length primary piping ensures optimum tuning for more power across the rpm range.