As Lunch has stated the BNR upgrades will produce more then enough power to have fun with, while keeping things fairly simple & cost down. If your budget allows & your goals are higher then what then BNR's can do then yes there are some pretty complete kits out there.
Here is a few companies that have kits, you will still need to upgrade other things like fuel sys, engine management ect.
http://www.a-spectuning.com/products.htm#turbokits
http://www.himni-racing.com/index.ph...ath=229_63_161
http://www.turblown.net/store/index.php?categoryID=4