Pro Hoses Focus ST and RS Mk2 Hot Side Boost Hose – See Options

Pro Hoses hotside boost hose for Mk2 Focus ST and RS models.

Available as a replacement for original ST/RS, AIRTEC Motorsport intercoolers and/or big boost pipe kits.

Choose from available options below and see full description for differences.

Part no: PH/BOSFO16 

SKU: PH/BOSFO16
From £49.41 (inc VAT)
£41.18 (exc VAT)

Technical Data


Replacement silicone for the hot side boost hose for Focus ST and RS Mk2.

This can be made to order to fit different variations of intercooler and boost pipework.

The following options are available:

  • Original Focus ST Intercooler (2″ outlet) with 2″ OEM lower boost pipe
  • AIRTEC Motorsport Focus ST Stage 3/4 Intercooler or AIRTEC Motorsport Focus RS Stage 1/2/3 Intercooler (2.5″ outlet) with 2″ OEM lower boost pipe
  • AIRTEC Motorsport Focus ST Stage 3/4 Intercooler or AIRTEC Motorsport Focus RS Stage 1/2/3 Intercooler (2.5″ outlet) with 2.5″ Big Boost Pipe lower boost pipe

If fitting to a Focus ST – this can be fitted with the standard ST radiator however, for better fitment, we would recommend fitting with RS radiator to prevent any rubbing.

Part no: PH/BOSFO16

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