Air Filters

£ 44.95
AS Performance Group 'A' Air-filter Air-Ram feed + RS slam panel option

The group 'A' open air-filter kit has been a great addition to the ST225, problem was lack of cold air, AutoSpecialists has come up with the solution, factory looking Air-ram system that gives you just as much cold air as a Focus RS!

Please note, this currently only fits AutoSpecialists Group 'a' air-filter.

£ 159.00
AS Performance Group 'A' open Air-filter with Cold Feed Scoop
  • Kit includes - £159
  • 1x Huge Group 'A' style k&n filter
  • 1x AS performance 80mm trumpet with cold feed scoop 'powder coated satin black'
  • 1 x Pair of custom made silicon Pro-hose joiners 'stainless clamps included'
  • RS Ecu cover is required to fit this filter kit, available for £79.95
  • Add AS Alloy top induction pipe for only £125
£ 299.00
AS Performance Ported Lower Inlet manifold for Focus Mk2 ST & RS - outright
  • Gains from 5-15bhp & 8-20ftlb of torque depending on spec.
  • Ported and polished finish
  • Degreased & shot blasted finish for that brand new finish
  • Inlets ported to match AS upper cast inlet manifold
  • Easy DIY job with correct tools and good basic mechanical knowledge
  • Available with a exchange or outright option
  • Value for money, the AutoSpecialists pledge
£ 129.95
AS ST Alloy top induction pipe - Satin Silver Polished or Pro-Series Black

Available in Satin Silver (Motorsport Style Finish), Polished alloy or Pro-Series Black

Fits all Focus ST 2005 to 2011