Description

VTT Modular Silicone/Billet Intake System – BMW G2/3/4X B58TU

VTT is proud to announce our Modular Silicone/Billet Intake System for the BMW G2/3/4X platforms equipped with the B58TU engine.

After extensive testing and countless hours of fitting, we’ve created an intake system that delivers both optimized airflow and factory-level fitment.

Why Upgrade?

The factory BMW airbox itself performs well, but the intake tract down to the turbo is full of twists, turns, bellows, and even a built-in silencer that restricts flow and robs power. Our system eliminates these bottlenecks and replaces them with a 3″–3.5″ free-flowing silicone intake tube, paired with either:

• The stock airbox (for OEM appearance and sound), or

• Our 6″ high-flow cone filter with integrated velocity stack (for maximum airflow and sound).

From testing, we’ve confirmed the stock airbox is capable of supporting up to 700WHP. Beyond that, we recommend stepping up to the 6″ cone filter system.

Modular by Design

This system is fully modular, allowing you to configure it for your exact goals.

Options:

1. Full Intake System w/ Cone Filter

   • Billet CNC turbo adapter plate attaches to stock turbo

   • Silicone intake routes to billet MAF housing

   • Stock airbox lid/filter removed

   • High-flow 6″ cone filter with velocity stack feeds cold air

   • Best choice for sound + max airflow

2. Stock Airbox Configuration

   • Billet CNC turbo adapter plate attaches to stock turbo

   • Silicone intake routes to stock MAF housing in OEM airbox

   • Removes all restrictions from turbo to airbox while retaining OEM look and sound

   • Recommended up to 700WHP for stealth builds

3. Carbon Fiber Airbox Lid w/ High-Flow Panel Filter

   • Billet CNC turbo adapter plate attaches to stock turbo

   • Silicone intake routes to MAF housing in VTT Carbon Fiber Airbox Lid

   • Uses VTT high-flow panel filter

   • Maintains stock-style appearance with increased flow and refined sound

4. Direct Compatibility with VTT “GC” Turbo Line

   • Works seamlessly with GC, GC-MID, and GC+ turbos

   • No adapter required; silicone inlet fits directly

   • For GC/GC-MID: any configuration works

   • For GC+ max-effort builds: 6″ cone recommended

Kit Contents (depending on configuration):

• 1x Billet turbo adapter with stainless hardware (optional)

• 1x Silicone inlet with dual CNC PCV adapters + clamps

• 1x Billet MAF housing with hardware (optional)

• 1x VTT Carbon Fiber Intake Housing (optional)

• 1x VTT High-Flow Panel Filter (optional)

• 1x High-Flow VTT 6″ Cone Filter with velocity stack (optional)

Applications

• BMW G2/3/4X platform with B58TU engine

• Direct fit for VTT “GC” turbocharger line

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⚠️ Note on PTC Heater:
This system removes the factory PTC heater. A “shadow code” may appear in the DME. In our testing, this does not trigger a check engine light, but the code will be visible if scanned. To eliminate it, coding is required.