SS Headers - LS Eng w/SF 1-7/8 PRI 4WAY

The SS Headers - LS Eng w/SF 1-7/8 PRI 4WAY by Detroit Speed Engineering is a precision-engineered exhaust header system designed for LS engine swaps and high-performance builds. Built for automotive enthusiasts and professional builders who demand maximum exhaust efficiency without compromise, this header set transforms how your LS powerplant breathes. Whether you're building a street machine, restomod, or track car, quality headers are foundational to unlocking horsepower and torque that your engine was designed to produce.

Detroit Speed Engineering's SS header features 1-7/8 inch primary tube diameter—the optimal bore for mid-range and high-RPM spool-up in most LS displacement classes—with a 4-way merge collector that balances scavenging efficiency and back-pressure control. The stainless steel construction resists thermal stress, corrosion, and header cracking that plague mild steel alternatives, ensuring durability through years of heat cycling. Mandrel-bent primary tubes maintain consistent diameter through each bend, eliminating the turbulence and flow restrictions common in stamped headers, while the tuned merge collector geometry pulls exhaust gases smoothly from all cylinders and accelerates them toward your exhaust system.

These headers are ideal for LS engine installations in Chevrolet, Pontiac, Cadillac, and custom chassis applications where space is tight or fitment must integrate with modern engine bay architecture. Installation requires proper exhaust gaskets, quality header bolts, and careful routing of secondary oxygen sensors; alignment with your transmission tunnel and oil pan is critical before final torque. This header system pairs seamlessly with stock or modified intake manifolds and downstream exhaust components—from cat-back systems to turbo manifolds on boost builds—making it a versatile choice for both naturally aspirated and forced-induction LS applications.