VW / Audi 1.8T 20V Turbo Manifold – T25 Flange | Stainless Cast Steel

For AGU, BAM, APY, ADR Engines – Motorsport-Ready Turbo Upgrade Solution

This high-grade stainless cast turbo manifold is designed for VW/Audi 1.8T 20V engines (AGU, BAM, APY, ADR). It supports direct installation of popular T25-flange turbos, including the Garrett GTX28 series, GT28R, and many others.

With flow-optimized internal runners, this manifold enhances exhaust gas velocity and drastically reduces turbo lag. The thick 8 mm casting ensures crack resistance and durability even under extreme heat cycles from high-boost applications and track use.

Key Specifications:

• Engine compatibility: 1.8T 20V – AGU, BAM, ADR, APY
• Vehicles: VW Golf Mk4 GTI, Audi A3/S3 8L, Seat Leon 1M Cupra, and more
• Flange type: T25 (Garrett, BorgWarner compatible)
• Material: High-alloy cast stainless steel
• Wall thickness: 8 mm – built to handle high EGTs
• Flow design: CAD-optimized for reduced backpressure and fast spool
• Finish: Machined flanges, smooth cast runners

Performance Benefits:

• Ideal for turbo conversions and high-power builds
• Faster turbo spool and better boost response vs stock manifolds
• Significantly more power potential when tuned
• Durable and track-proven construction
• Compatible with T25 flanged turbochargers
• Installer-friendly for a range of engine bays

Note:

A T25-based turbo and custom ECU tuning are required. Not street-legal. For racing and export use only. Professional installation recommended.