2001 GS430.

Bought some $750 Continentals 5-7 months ago. I used to be able to take off from a standstill with no wheel spin, now they break lose pretty easy. Are they too small? I went out and looked at them, I think they're 215/60. Though I picked up torque after fixing my exhaust, does the GS430 have that much power? These are what the guy at Discount Tire recommended

In the meantime gonna check PSI.

 

How many miles on the tires? "5-7 months" could be 3,000 or 30,000. Also, it's now colder.

 

I wanna say 8000.

 

215/60 is the narrowest size available on the GS at the time it was sold, as well as the tallest. If I'm not mistaken, all GS400s and 430s came with a 17" package regardless of options: this would have had a 235/45-17.
To answer to your specific scenario, the GS430 has ample torque to break tires loose if they're not very sticky, and you have a lead foot, and VSC is turned off. From personal experience, I have never had a wheel spin problem unless I was intentionally giving it a lot of throttle off the line.

It's certainly not impossible to take off without spinning the tires, especially with VSC enabled; that sounds like driver error.

 

Gs400/430 didnt come with 16” wheels. Regardless I would get the alignment checked before you started trouble shooting.

 

What line of continentals are you running? Just because they are expensive, doesn't mean they are are meant for any kind of performance. Most of what they sell are touring tires meant for long life. Which means pretty hard rubber. Not good for grip. And as mentioned 215 is very narrow for any v8 by later standards. Performance is even worse in the cold.

 

You got tires that don’t offer the same traction as your previous tires. What’s your question?