AIRTEC Motorsport Lower De-Res Boost Pipe for Ford Focus ST MK3 Diesel (ST-D) Resonator Delete, 47mm ID, Direct-Fit Lower Intercooler/Boost Pipe, Pro-Series Black Fits OEM or AIRTEC Intercoolers

AIRTEC Lower Charge Pipe Upgrade for Focus ST Diesel Mk3

Free up airflow and sharpen response on your Focus ST-D with AIRTEC’s lower charge pipe upgrade. This smart replacement for the restrictive OE lower pipe removes the built-in noise chamber for a cleaner, faster path from turbo to intercooler. Expect crisper throttle, smoother boost delivery and a more purposeful turbo note. Ideal for daily-driven cars and remapped 2.0 TDCi builds alike.

What you get

• Lower hot-side pipework engineered for improved flow on the ST Diesel platform
• Noise chamber removal for uninterrupted boost, often called silencer delete or resonator removal
• Constant 47 mm I.D. throughout to minimise pressure drop
• Bead-rolled swaged ends for secure hose retention at higher boost
• Direct swap that uses the factory couplers and fixtures
• Works perfectly with the standard front mount cooler or AIRTEC upgraded intercoolers
• Durable Pro-Series Black finish to match OEM bay aesthetics

Why enthusiasts choose this lower pipe

• Quicker turbo spool and improved transient response when coming back on throttle
• Reduced turbulence versus the stock pipe’s internal chambered section
• More consistent boost control under sustained load and repeated pulls
• Simple fitment at home in around 30 minutes with basic tools

Fitment

Designed for Ford Focus Mk3 ST Diesel ST-D 2.0 TDCi. Fits with the original intercooler or AIRTEC uprated intercoolers, and connects to the standard rubber hose network for a straightforward installation.

Proven by us and our customers

We run this AIRTEC lower charge pipe on our own cars and recommend it regularly. Owners love the quality, the precise fit and the immediate improvement in drivability and boost consistency.

Professional fitting available

Prefer a hassle-free install? Book expert fitting with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote.

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