Skip to product information
1 of 2

AIRTEC Ford Focus ST MK4 Big Boost Pipe Kit

AIRTEC Ford Focus ST MK4 Big Boost Pipe Kit

  • 11-piece kit
  • Direct replacement fitment
  • Aluminium construction
  • Enlarged diameter for improved flow

Regular price £284.99
Sale price £284.99 Regular price

  • Fully secure checkout
  • Trusted by thousands
  • Rated and reviewed
More about how your protected
AIRTEC Ford Focus ST MK4 Big Boost Pipe Kit

£284.99


Developed in-house at AIRTEC, this comprehensive boost pipe upgrade kit has been designed to improve the car’s original pipework by increasing airflow, capacity, and throttle response while reducing restriction.

The 11-piece kit includes three lightweight aluminium pipes for maximum strength under higher boost pressures, six Pro Hoses silicone joiners, and two CNC-machined connectors to ensure perfect fitment and easy installation.

On the hot side, the factory pipework measures just 55mm and includes an indented section that restricts flow. AIRTEC’s replacement increases this to a full 60mm internal diameter from start to finish, completely removing bottlenecks. On the cold side, the OEM setup tapers from 55mm to 63mm, while the AIRTEC upgrade maintains a consistent 63mm internal diameter throughout for smoother airflow and increased capacity.

This direct-fit kit requires no cutting or drilling, and comes complete with all fixtures, fittings, and detailed fitting instructions. The result is stronger, freer-flowing pipework that enhances reliability, performance, and throttle response - ideal for both fast road and track use.

Note; Will not fit automatic models

  • Precision engineered CNC connectors
  • Lightweight aluminium construction
  • Will not fit automatic models
  • Boost hoses only
  • Fittings and fixtures included
  • Detailed fitting guide