Flowtech 11537FLT LS Turbo Headers – Natural Finish

Flowtech 11537FLT LS Turbo Headers – 1-7/8″ Natural Finish

LS Turbo Headers (Up and forward) 1-7/8″ 409SS GM 4.8/5.3/6.0L V8 Natural Finish

The Flowtech 11537FLT LS Turbo Headers deliver an ideal balance of performance, durability, and value for turbocharged LS builds. Designed as a universal-fit turbo header, this up-and-forward configuration allows flexible turbo placement options including up-and-forward, down-and-forward, or down-and-back layouts. These headers are well suited for custom turbo applications where space, flow, and strength matter.

Built from heavy-duty 409 stainless steel and finished in a natural raw stainless appearance, these headers are designed for GM 4.8L, 5.3L, and 6.0L LS-based V8 engines. The 1-7/8″ primary tubes provide increased exhaust flow to support higher horsepower levels and improved throttle response in boosted applications.

Overview

Flowtech LS turbo headers feature a compact “4-into-1” design that makes them adaptable to a wide range of custom turbo builds. Available in multiple tube diameters and finishes, these headers are engineered to provide smooth exhaust flow, excellent scavenging, and long-term durability.

Features

• 1-7/8″ primary tubes for increased exhaust flow and performance
• Up-and-forward turbo header design with flexible mounting configurations
• CNC mandrel-bent tubing for consistent diameter and smooth exhaust flow
• Heavy-duty 16-gauge 409 stainless steel construction (Natural Finish)
• 3″ collector for maximum strength and exhaust flow
• 7/16″ thick header flanges for a strong, leak-free seal
• Includes premium aluminum header gaskets
• Includes 3″ V-band flanges and clamps
• Available in multiple finishes: Natural, Black Painted, Ceramic Coated, and Polished

Fitment

Fits GM 4.8L, 5.3L, and 6.0L LS-based V8 engines. Universal turbo header design intended for custom turbocharger installations.