BMW 4 Series 420i / 430i Upgraded Aluminum Turbo Chargepipe – Full Metal Design for Improved Airflow & Boost Control | Fits F32 / F33 / F36 B48 Engines (2015–2019)

Replace the weakest link before it fails.

Your BMW’s factory plastic chargepipe is notorious for cracking, leaking, or completely bursting under boost — especially on tuned or hard-driven cars. Heat, pressure, and age eventually cause the thin composite material to expand and split, leading to boost loss, check engine lights, or limp mode.

The BAVMODS® Upgraded Aluminum Chargepipe solves that permanently.

CNC-bent from high-strength aluminum and finished in a sleek matte black powder coat, this chargepipe not only looks OEM+ under the hood — it’s built to outlast the car.

Engineered for Strength and Performance

• Full Metal Construction: Unlike the brittle factory plastic pipe, our precision-formed aluminum tube will never crack, warp, or separate from the throttle body under high boost.
• Improved Boost Reliability: Reinforced couplers and high-tolerance flanges ensure an airtight seal, preventing boost leaks that rob horsepower.
• High-Temperature Resistance: Handles extreme under-hood heat without fatigue or deformation — perfect for tuned vehicles running higher PSI.
• OEM+ Design: Maintains the same geometry and fitment as the factory pipe for a clean, factory-style installation.
• Enhanced Throttle Response: Smoother internal walls improve airflow velocity, reducing lag and delivering sharper turbo response.

Why Aluminum Over Plastic?

BMW’s stock chargepipes are lightweight — but fragile. Plastic expands and contracts with heat cycles, slowly weakening at the throttle-body joint until it fails.

When that happens, your car instantly loses boost pressure and can even trigger a “Charge Pressure Control” or “Boost Leak” fault.

Our upgraded black aluminum chargepipe eliminates that risk entirely.

It’s built to withstand tuned boost levels, extreme heat, and long-term stress, making it the go-to solution for anyone running a tune, larger turbo, or simply wanting peace of mind.

Complete OEM+ Installation Kit

Every kit includes everything you need for a perfect install — no trips to the parts store mid-project:

• Premium silicone couplers
• Metal T-bolt clamps
• Mounting hardware, O-rings, and seals
• All fittings pre-welded and pressure-tested

It’s a true plug-and-play upgrade that installs cleanly in place of your OEM pipe, using the same mounting points and sensors.

Performance You Can Trust

This isn’t just an aesthetic upgrade — it’s a structural one.

Whether you’re running a stock tune or a full Stage 2 setup, your turbo system depends on boost stability. The BAVMODS® Black Aluminum Chargepipe ensures your car performs the same on the 100th pull as it did on the first.

Your turbo deserves confidence — not compromise.

FITMENT: BMW 4 Series Fitment (B46 / B48 Engines): F32 420i Coupe (2015–2019), F32 430i Coupe (2016–2019), F33 420i Convertible (2015–2019), F33 430i Convertible (2016–2019), F36 420i Gran Coupe (2015–2019), F36 430i Gran Coupe (2016–2019)

Please refer to the “Fitment” section in the product description for compatibility details.