The split pulse highmount will help as will the divided housing, housing is 1.01. Obviously, it won't (shouldn't?) spool as quick as the gtx3676r but the pay off should be the extra midrange/top end. Given the wheel is much bigger on the s300-sxe it won't need to spin as quick to produce the same airmass as the gtx3576r so it will be interesting.
Not expectation really just doing it for S's&G's
EDIT- Sorry Camo, I deleted your double post and for some reason it nuked the original as well.