AIRTEC Motorsport Big Boost Pipe Kit - Ford Focus ST & RS MK2

£325.24 inc. VAT £271.03 excl. VAT

**Please note discounts codes are not accepted on this AIRTEC product. Any orders placed using a discount code will be contacted to pay the difference.**

ATMSFO63 - The Motorsport 2.5" Big Boost Pipe Kit from AIRTEC is a must for all remapped MK2's, with everything you require included in this kit.

Replacing the 2.0" restrictive boost pipes with the 2.5" hard pipe, will see gains of 11.8 bhp alongside a 9 lb/ft torque increase.

Originally designed for BIG BHP Focus RS, the Boost Pipe Kit will work greater on bhp of 375 and over, with the tests conducted on a 400bhp demo car. 

Please note on hose colours other than black it can take up to 4-6 weeks for your order to arrive.


  • Cold side (Intercooler to throttle body) we went for a 1 piece 2.5" silicon hose, this means you have NO joins and can add to extra flow and increased power. Available with or without dump valve outlet. 
  • Hot side (Turbo to Intercooler) is made from 2.5" light weight alloy and connected with 5 ply silicon hose joiners.
Will fit the following Intercoolers:
  • Pace
  • Pro-Alloy
  • Forge
  • Ford OEM
  • Direct replacement! no modding required.

Big Boost Pipe Kit will fit the Ford Focus ST Mk2 and Ford Focus RS Mk2.

Fitting takes approximately 1 hour. For fitting please contact us on the below details:

T: 01924 228042  E:

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