What is involved in a swapping a HX 35 for a HX 40? or is it a direct bolt on?
we have a t3 flange so as long as it has that style it will bolt up be carefull tho some have the t4 flange witch is bigger basically...HX40's can come with a different manifold flange. but for the most part they will bolt right on. worst case an adapter at the manifold and a downpipe. the intercooler line will clamp right on. unless the 40 has a hose connection.