K Series K24 K20 RSX EP3 Header w/ Bolt-On Catalytic Converter Supra The difference is the MAF

The difference is the MAF housing being bigger at 75mm diameter and therefore allowing for more air volume

it is a good time to also replace your catalytic converter for maximum performance and exhaust flow

Subaru Outback XT 2005-2009

water cooling must be used with this turbocharger

Acura RSX (Does not fit Type R) 2002-2006

K Series K24 K20 RSX EP3 Header w/ Bolt-On Catalytic Converter Supra The difference is the MAF*All headers and large exhaust items may be subject to additional shipping charges* This is the BEST header to get on the market today for your Acura RSX! Updated to now include a bolt on high flow metallic catalytic converter. Vehicle Fitment: Acura RSX DC5 2002 2006 Honda Civic Si EP3 Hatchback 2001 2005 Features: Includes bolt on high flow catalytic converter to fit RSX High flow, 200 cell, metallic core, catalytic converter Includes gasket and all