VW Audi 1.8T Stoßaufladungskrümmer 3 mm T3 Turbokrümmer

VW / Audi 1.8T 20V Turbo Exhaust Manifold – T3 Flange with 44 mm Wastegate

Built for extreme power – high-flow stainless steel manifold for 1.8T turbocharged engines

Description:

The 1.8T 20V engine platform from VW and Audi is legendary for its tuning potential. To safely push beyond 600–800 HP, a professionally engineered, flow-optimized turbo manifold is critical – this fully TIG-welded T3 manifold delivers just that.

Constructed from durable V2A stainless steel (1.4301), with 48 mm outer diameter and 3 mm wall thickness, this manifold ensures top-tier flow dynamics while maintaining thermal and structural integrity. Its 4-in-1 collector design provides precise gas routing, reducing backpressure and improving turbo spool.

Why choose this manifold?

• ✔️ Designed for big-turbo setups up to 800 HP
• ✔️ Perfect match for ported cylinder heads & high-boost builds
• ✔️ Smooth, even flow to the turbo – less turbulence, more power
• ✔️ Integrated 44 mm wastegate flange – Tial compatible
• ✔️ V2A stainless – corrosion & heat-resistant
• ✔️ Extra-thick machined flanges – warp-free & leak-proof
• ✔️ TIG-welded seams – professional finish & vibration resistance

Technical Specs:

• Tube diameter: 48 mm outer, 3 mm wall
• Flange type: T3 (compatible with Garrett, BorgWarner, Precision)
• Wastegate: 44 mm external port (Tial-style)
• Material: V2A stainless steel (1.4301)
• Welding method: TIG (WIG)
• Engine codes supported: AGU, AEB, BAM, AUM, ARZ, AUQ and more

Recommended Use:

• High-power 1.8T builds (track, drag, drift, street-legal race cars)
• Stage 3+ setups with standalone ECU or advanced mapping
• External wastegate turbo kits with 44 mm routing

Note:

This is a motorsport-only part and not street legal in most countries. Professional installation is highly recommended.