Delivery, customs and taxes
Know the landed cost before you order
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For UK customers, prices include VAT, customs and delivery unless checkout states otherwise. Outside the UK, shipping is shown at checkout and local customs and taxes remain your responsibility.
Lead times and urgent orders
Check timing before you commit
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Some products are made to order, imported or custom built. If timing matters, contact us before ordering and we will confirm the expected delivery timeframe.
Fitment checked before you order
Send the vehicle, engine and current setup if you want us to confirm the exact application before checkout.
5-ply and 3-ply silicone, stainless steel wire reinforced
Replaces
Factory rubber boost hoses
Summary
This MST Performance silicone boost hose kit rebuilds the MK3 Focus diesel's charge-air plumbing in materials that last: 5-ply and 3-ply silicone construction with stainless steel wire reinforcement, replacing the factory rubber hoses as a direct swap. Covering the 1.5 TDCi (2014-2022), 1.6 TDCi (2010-2020) and 2.0 TDCi (2011-2020), the smooth internal surface keeps airflow clean while the layered construction resists heat, pressure and age.
Best For
MK3 TDCi owners replacing soft, ageing factory hoses before they let go
Remapped or hard-working diesels needing hoses that hold higher boost
Fleet-turned-private cars getting a proper under-bonnet refresh
Material: 5-ply and 3-ply silicone, stainless steel wire reinforced
Replaces: Factory rubber boost hoses, direct swap
Fitment type: vehicle-specific, direct replacement
Layered Silicone Versus Old Rubber
Multi-ply silicone with wire reinforcement holds its shape under boost, so the hose neither balloons nor collapses as pressure swings — that is what the 5-ply and 3-ply construction is for. Factory rubber softens with heat and oil exposure over the years; this kit resets the whole run in one go. Driving the earlier MK2 diesel instead? Its dedicated MK2 boost hose kit is here.
Fitment And Setup Checks
Match your engine and years: 1.5 TDCi 2014-2022, 1.6 TDCi 2010-2020, 2.0 TDCi 2011-2020
MK2 Focus diesels use the earlier kit, not this one
Renew any corroded clamps while the old hoses are off
5-ply and 3-ply silicone, stainless steel wire reinforced
Replaces
Factory rubber boost hoses
Frequently asked questions
What does the ply construction actually mean?
Each hose is built from layered silicone — 5-ply or 3-ply depending on the section — with stainless steel wire reinforcement, so it stays dimensionally stable under boost instead of swelling like tired rubber.
Will these fit my MK3.5 facelift car?
The year ranges in the table run to 2020-2022 depending on engine, which spans facelift builds — match your engine and year, and ask us if your car sits at a boundary.
Do I need special tools to fit them?
It is a direct swap for the factory hoses with standard hand tools; allow time to access the lower runs and check every clamp as you go.
Delivery, customs and taxes
Know the landed cost before you order
For UK customers, prices include VAT, customs and delivery unless checkout states otherwise. For customers outside the UK, local customs and taxes remain your responsibility, and shipping is shown at checkout. If a shipping option is not available, email us and we will prepare a tailored quote.
Lead times and urgent orders
Check timing before you commit
Many of the products we sell are made to order, imported or custom built, so a lead time may apply. If you need a part urgently, contact us before ordering and we will confirm the expected delivery timeframe and process.
Fitment first
Check fit before you order
Model year, engine, drivetrain, hardware and existing modifications can all change what fits. Check the applications and supplier notes above, or send us your exact vehicle and setup before ordering.
Check vehicle fitment
Need help with this product?
Send us your vehicle, year, current setup and any fitting date, event, trip or deadline before ordering. We will help check fitment, product choice and timing.