Vibrant 1441 304 SS T4 T04 Undivided Turbo Inlet Flange 1/2 in. Thick Universal

Vehicle Fitment

• Universal - Compatible with T4 and T04 frame turbochargers using an undivided (non-divided) turbine inlet configuration requiring a standard 4-bolt inlet flange connection.

Fitment Notes

• Fits T4/T04 undivided turbine inlet turbos only. Not compatible with divided (twin-scroll) T4 inlet configurations - see part number 1442 for the divided variant.
• Bolt hole type: Drilled (non-tapped). Confirm hardware compatibility before installation.
• Matching stainless steel gasket available separately under part number 1441G.
• Also available in mild steel under part number 14410.
• When welding to stainless steel tubing, 309L welding filler rod is recommended.

Features

• T304 stainless steel construction resists warping, corrosion, and heat from sustained turbocharger operation
• 1/2 in. (0.500 in.) thick flange prevents distortion and sealing failures under high exhaust heat cycles
• Precision laser cut and CNC machined for accurate port and bolt hole alignment to T4 turbo specifications
• Rectangular inlet port (3 in. x 2 in.) matched to T4/T04 undivided turbine inlet geometry
• Standard 3.25 in. x 2.75 in. bolt pattern provides wide compatibility with T4-frame turbochargers
• Machined mating surface ensures a tight, leak-free seal against the turbocharger housing
• Suitable for turbo manifold fabrication, custom downpipe builds, and header-to-turbo connections
• Backed by Vibrant's 1-year limited warranty

Specifications

• Part Number: 1441
• Material: T304 Stainless Steel
• Turbo Fitment: T4 / T04 Undivided Turbine Inlet
• Flange Type: Turbo Inlet
• Flange Thickness: 0.500 in. (1/2 in.)
• Inlet Port Size: 3 in. x 2 in.
• Bolt Pattern: 3.25 in. x 2.75 in.
• Bolt Hole Type: Drilled
• Finish: Machined
• Matching Gasket: Vibrant 1441G (sold separately)
• Warranty: 1 Year Limited Warranty

Included Components

• 1x Vibrant 1441 T4/T04 Undivided Turbo Inlet Flange, T304 Stainless Steel, 1/2 in. Thick

Product Description

The Vibrant 1441 is a T304 stainless steel turbo inlet flange designed for T4 and T04 frame turbochargers using an undivided (single-scroll) turbine inlet. At 1/2 in. thick, the flange provides the rigidity needed to resist warping under the sustained thermal cycling of forced induction exhaust systems. The 3 in. x 2 in. rectangular port matches the undivided T4 turbine inlet geometry, and the standard 3.25 in. x 2.75 in. four-bolt pattern ensures broad compatibility across the T4 turbocharger family from multiple manufacturers.

This is one of the most widely used turbo flanges in the aftermarket fabrication community for custom manifold builds, turbo swaps, and header-to-turbo connections on both naturally aspirated conversions and existing forced induction platforms. It welds directly to stainless manifold tubing using 309L filler rod and pairs with the Vibrant 1441G gasket (sold separately) for a complete sealing solution. The divided T4 variant (1442) and mild steel equivalent (14410) are available separately for applications requiring those configurations.