Sorry if this is old news, but I haven't seen it mentioned here yet.

The July issue of "Turbo Magazine", with a DB 350Z on the cover, has a series of articles about upgrading the 350Z.

The first is the Greddy twin turbo kit, which is due for sale this summer. The optional grille-replacement intercooler lets everyone know what's under the hood.

The other upgrades are a Blitz intake, a Sun Hyper Ground, and an Invincia (sp?) exaust. Each upgrade has before and after dyno test runs, showing increases in hp & tq.

Although everyone seems to be adding an aftermarket ground, I was skeptical about it having any effect - according to the article (and dyno) it adds 4.8hp at 5100rpms.

 

can you give a summation of parts and what they added hp wise?