From previous dsm i've had i would go with a evo 3 16g, u get great top end power with minimal lag. I had a 20g but didn't like it much. I also had a 18g didn't like it much either. if you decide to go garret you have many options, but kind of a pita. Switching from internal gates to external, and having to get a new exhaust manifold downpipe etc. Just my 2 Cents. Sorry about previous post.