AS Performance de-cat downpipe for Focus ST 250 Piper specifically engine codes AXX and

specifically engine codes AXX and BWA as fitted to the Audi A3

Install Instructions

The materials and processing are closely monitored for optimum performance

T without a catalytic converter

The separate and independently adjustable rebound- and compression damping allows for an individual suspension setup for different uses and preferences

AS Performance de-cat downpipe for Focus ST 250 Piper specifically engine codes AXX andAS Performance downpipe de cat for Focus MK3 ST250 The Original Catalyst and down pipe , unlike the older ST225 and Focus RS mk2, are made in one piece. This new design features some restrictive bends and an exit bore size of only 55mm. With a new bore size of 70mm the new AS performance Replacement Down Pipe has over 50% more capacity. This part is sold for motorsport and off road use only and will NOT be able to pass a UK MOT emissions test or