well the forged performance kit is about 3900. wisco sells 9.0-1 pistons as well if you want to go the cheaper route. can't imagine a set of pistons costing more than 1500 with rings.

making 450whp on an STI is not as easy as we're making it sound. Its a lot more involved than just slapping on a turbo. Honestly, I feel its easier to make 450whp using a SC on a 370z than it is to get a big turbo setup on the STI. The STI block just inst made for that kind of power...

20 psi, find me a kit too lmao

For me it was 3 months in the shop and just shy of $20K to get there correctly.

That's why I got the Evo vs. the Sti because 450whp is easily attainable on the Evo with out spending $20K. I'm not sure what you had done to the car to pay that much and have in the shop for three months? sounds kind of long and expensive.

Godzilla I hope you don't drive like you type because I am so freakin dizzy right now. I suggest you browse the forums for a while, without posting to get an idea how members here communicate and use proper punctuation etc.. and Google can be your best friend. for example if you want to learn more about specific cars, usually Wikipedia will be one of the first links and you can learn a great deal about that car, it's history, and even potential. Good luck, congrats on the Z, and take good care of her.

a 370 on 20psi would be a 7-800 whp monster..... I would love to see it... or own it for that matter lol....

Thanks for the answer... That isn't bad at all considering the cost of a turbo or S/C setup...

nah i think id be significantly higher. the gtm stage 3 kit doesnt take it to 20psi and they're already making 700hp