Stemmersånn ordrett står det følgende:
Emissions - The turbocharged PCP engine has a
somewhat lower exhaust gas temperature than the
reference N/A engine. This has a negative effect on the
light-off time of the catalyst.
Using a catalyst with metal substrate and thin-wall
austenitic stainless steel exhaust pipes, light-off is
achieved within the same time period as the N/A
engine.
The car equipped with a PCP-engine and automatic
transmission fulfills the US-federal regulations without
any extra treatment except the TWC. The small valve
overlap also contributes to a low emission level.
Med andre ser det ut til at man må ha en annen type katalysator..