Speed Engineering Universal LS 1 3/4" Forward-Facing Turbo Headers
Speed Engineering 25-1023 universal GM LS 1 3/4-inch forward-facing turbo headers. Mandrel-bent, TIG-welded natural stainless construction with short 3-inch collectors, CNC-machined flanges, and included graphite gaskets. Designed as a universal fabrication header rather than for a specific chassis.
Choose SMG LS MLS gaskets, SMG 9070C ceramic plug wires, or both. The 9070C ceramic wires resist header heat and are the only plug wires SMG uses on its in-house header builds. Custom turbo fabrication and vehicle-specific clearance work are required. Race-use product.
Processing & Shipping Overview
Processing occurs before shipping.
Most in-stock items typically process within 2–3 business days before shipment or pickup. Expedited shipping options affect transit time after an order ships and do not speed up processing.
Made-to-order, special-order, vendor drop-ship, and freight items require additional processing time before shipping. Any extended lead times will be noted on the product page when applicable.
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