The AshSPEC Mssive out flow and are more efficent then any of those. But, until he gets ducts avalible the greddy and stillen still have his beat on fitment (but think you could probably modify stillen ducts to fit - but I wouldn't). They fit fine there are just no ducts avaible for them yet.
m a g l i t o parts are FINALLY here - engine is going back together NOW sig photo by me effects by ZXRider(SoCal)