i have just taken ownership of a 2006 hawk 2.0 R Sport, with the EJ204 engine with AVCS. it really needs the exhaust seeing to as it sounds like a Honda Civic and would like to unlock a little more of a burble from it. does anyone have any info or were to either buy or how to mod some unequal length headers for a 2006 2.0r non turbo. i do know that they cant be bought as easily as the pre 2005 non turbo engines, but i have been told that wrx headers will work with some modification?? tia

contact either  the scoobyclinic   and/or rogerclark motor sport. Both highly regards in impreza tuning should be able to help point you in the right direction

Wotcha and welcome - you could modify wrx headers - they are made to connect to a turbo then to an exhaust - you just need them to go straight to an exhaust. It might be worth chcking with someone like Cobra who will make you an exhaust and see if they could mate it to the manifold without the need to modify??