So I need new tires in about a month or so and I had a few questions.

First of all my 2 rear tires at T rated tires, and my 2 front ones are H rated tires.

I was told that the ssei is reccomended to have H rated tires, is that correct?

Also I'm planning on doing alot of performance mods to my car in the near future and I was wondering if I should get higher rated tires now?

On the topic of performance mods, I know I need a scanner for KR when doing these mods. What does KR stand for? and what are the negative effects of it?

if you dont plane on going over say.... 110 MPH ever get what ever speed rated tires you want to.

But if you plan on going to the speed limiter with is 128 on a good amount of SSEis. then you want at least H Rated. witch is 130MPH

You want em with the ZR rating

yes and dont forget to ask them for the Flux Capacitor....

i just got my Goodyear Eagle F1'* a month ago and i like em'. "W" rated Ultra-high performance all season. when u get a "W" or "Z" rating then u dont have to worry about how fast u go. and just to give u a basis.....KR is Knock Retard. when ur car senses knock it pulls ur timing advance and u loose power.