your mnissing the point. i can do the same thing with a de, stock manifold, and a gt3071r....hell, damn close with the cheap ass 18 g thats on my car. think the build cost under 1200 bucks. im sure others have made a go at it, and yes, you can use a log manifold, but your not doing a damn thing diffrent thatn what would be done with a de. that log is a hell of a restriction, and if i waste my time with a vvl, ID be working with a large turbo, equal length manifold, and a bottome end built for the abuse. at then end of the day, if people are asking questions like these they have no idea what theyre doing, and should probably keep it simple. ive had vvl cars. im not impressed. that being said, i dont know shit, my car is slow, i dont build these things on seriously tight budgets, and i never should be listened to anyways.