Universal LT 1 3/4" Turbo Headers | (Forward Facing Upward) — Manufacturer part number: 25-1055.

(In Stock)

Speed Engineering turbo headers are made out of 304 stainless steel and offer great quality, performance, and affordability. Our headers are mandrel bent, tig welded, and feature natural stainless steel construction. We stand behind our headers in saying you will not find a better fitting, quality built, budget header for your vehicle.

Features include:

• Mandrel Bent Tubing
• 1 3/4" Primaries
• Short Collector Design
• Built in Mounting location for 44mm Wastegate
• Forward Facing Turbo Headers
  
• 3" V-Band Collector
• V8 Engines Only
• 5.3L, 6.2L, LT1, LT4 Engines
• CNC Machined Flanges
• Polished Stainless Steel
• Standard Graphite Manifold Gaskets

Note: Some swap vehicles might require modifications or replacements of factory A/C and/or Brake components.

Note: Works with our ignition coils part number (26-1028) or factory D510C coils mounted on the factory valve covers with factory brackets. 

Vehicles Tested for Fitment

• 2014-2019 Chevrolet Silverado (5.3L, 6.2L) "LT Engines Only"
  
• 2014-2019 GMC Sierra (5.3L,6.2L) "LT Engines Only"
  

(Warning) This is a RACE ONLY product manufactured and sold for installation on vehicles to be used solely for competition purposes. Once this part is installed, the vehicle may never be used, or registered or licensed for use, on a public road or highway. If you install this part on your vehicle and use the vehicle on a public road or highway, you will violate the Clean Air Act 203(a)(3), 42 U.S.C, 7522(a)(3) and may be subject to personal civil or criminal liability.

Fitment and ordering

Confirm the vehicle, engine, dimensions and application restrictions listed above before ordering. Speed Engineering parts are designed to work with Speed Engineering components; mixing brands may require modifications.

Available upgrades and related Speed Engineering parts

Use the selectors above to include upgrades with this product. The links below are for reference or separate purchases; do not also buy an upgrade separately if you have already selected it above. Check quantities, included parts, and fitment.

• LT Multi-Layer Steel Gaskets
• Standard Zinc Bolts - LT
• "RED" 10" Total Length Wires
• "RED" 12" Total Length Wires
• "BLACK" 10" Total Length Wires
• "BLACK" 12" Total Length Wires
• Upgraded HD V Band Clamps

Manufacturer specifications and availability checked October 4, 2026. Availability refers to the manufacturer and can change; it does not indicate stock held at Speedzone.

Returns: All Speed Engineering product sales are final. No returns are accepted on Speed Engineering products. Please verify fitment before ordering. See our Return Policy for additional terms. This does not limit any consumer rights that cannot be waived under applicable law.