Ive tried fitting these headers to my car but they dont clear the sump. Was told they were twin scroll but have now been told they are single scroll but equal length can any one definitely confirm what they are and what I need to get them to fit. They are kakumei headers

 

Hi Johnny.
this is indeed for a single scroll engine, but running a different sump arrangment then ur classic, must be off ej25,
you will either have to change ur sump or manifold, hope i can shead some light on this ,

please check,, http://blog.edoperformance.com/2008/...aust-manifold/

best regards scoobymike
p.s.
if i was you , i would change manifold, as this design is not the best,