What to upgrade to put as much power to the ground without wheel spin

Hey guys, I wanted to see what everyone recommends to upgrade to help keep as much traction as possible and put all power to the ground without spinning the tires. Just doing some research so I know what parts to lookout for and to upgrade when I start getting into performance mods.

Supercharger and good tires.

Bushings for the IRS with help. You already have some beefy 315s out back and some stiffer springs.

Unless you are talking about gobs of hp(e.g. more than a 100 whp), I wouldn't worry about it until you start spinning tires at low rpms and having the traction control intervening and lighting up like a Christmas tree-think BMW N54 turbo's. You'll want to invest in:
-Upgraded half shafts-try the driveshaft shop.
-Drag radials-if you don't mind the high rate wear
-Check with the tuners like Cobb to see if they can bump the limit before the traction control intervenes.
BTW I have seen some of the Vossen cars at Tower Shoppes and they really look awesome

Whiteline transmission mount bushing. Itll make it shift like buttah