When swapping over the EJ20X/Y Powertrain more than to these types, you have got the choice to use the twin-scroll turbocharger and JDM headers, up-pipe but you'll need to source/alternate a twin-scroll downpipe to fit along your existing exhaust set-up or swap more than the USDM Intake Manifold along with the USDM headers, up-pipe, turbocharger an