Thanks for the advice on the sleeving. Are they about the same price>? As for the manifold it came with the turbonetics kit so I am sure they manufactured it. I have the complete turbonetics kit but switched out the t3/t4 with a garrett precision and switched out the evolution wastegate for a tial. then it has the spearco intercooler. The filter was just a lucky find I went it to advance and I see it from all the way across the store and was like oh man got to have that. It beats the maroon look of k&N although the quality of filter may not be as good. Thanks for the comments. I know there are a lot of different views on integras. Some like custom some like street and jdm. So I really appreciate it.