wat is the best ic 2 use and were is the best place 2 put 1 on a 2000 ssei

First of all, read this:
http://www.bonnevilleclub.com/forum/...ic.php?t=73691

It'll help us help you. Another thing we'd really like you to do is click on PROFILE and add your car information to your signature. That way we can remember what you have.

An intercooler will probably be the LAST thing you do. Work on the basics first.

Im looking 2 buy rims but i dont wanna hurt my performance. So wat would be the best size staying with the stock 17"* or going bigger. Also the lug pattern is 5x115 right.

stick with 17'* or 18'*, and yes they are 5x115 like I already told you.

can i fit 18'x8 or 18'sx10

you could maybe fit 8" wide, but not 10"... this isn't a Corvette

haha thanks

If you don't want to hurt performance, don't change them.

Larger wheels are generally heavier, which will negatively affect braking and accelleration performance. Lower profile tires will affect ride quality and in most cases will negatively affect cornering.

:? :?:

low pros make it feel like you are on rails compared to the bubble tires we are used to.

Yes, it'* true. Your sidewall needs to be of sufficient profile height to be able to flex a little and keep the contact patch on the road. There are exceptions (usually very expensive) but this is a general rule.

Look at Nascar or F1 tires. See any low-pro'* there? No. And you never will.

Low profile tire handling is commonly misunderstood. There are many dynamics to tire performance.