Miltek Focus RS MK3 - Large Bore Downpipe and Hi-Flow Sports Cat SSXFD192 Wheels so it only opens as

so it only opens as much as required to get the job done (the factory valve simply opens and shuts

When performing our tests on a std car runnng Shell V-Power and the JLT intake only

It works by stopping the information travelling to the OBD port and therefore prevents a thief from accessing it

the idea was to come up with a spacer that was not only more technically focussed

a remapped car has increased power by ecu changes that raise boost pressure and other parameters

Miltek Focus RS MK3 - Large Bore Downpipe and Hi-Flow Sports Cat SSXFD192 Wheels so it only opens asMiltek Large Bore Downpipe with 200 Cell High Flow Cat for Focus MK3 RS. Requires Stage 2 ECU Remap. For fitment to Milltek Sport Cat Back Only SSXFD192