Come out! Some of the best drivers we have started with stock cars. The best way to get into it is come with your car track it and mod it as you go. It's one thing to have a crazy car that masks your mistakes vs learning how to drive a slow car fast.
On the Z's the only thing id change is decent pads and brake fluid. A lot of guys want the idea of coming in and being the fastest guy out there. You should come out wanting to learn and get faster and to have fun. Winning will come after that.
This is one of the competitors Automatic stock suspension stock everything minus the Nismo aero he added. He is running Endless brake pads and better fluid. Thats it.
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Corner3 Motorsports, on Flickr
Here is a stock G35 getting it on. Its a series where you can start from the bottom and work your way up. We have instructors who will help you. Corner3 Motorsports that can guide you on your build and a bunch of guys that can help you out in the pits. Consider it a home for you to race and grow.
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Corner3 Motorsports, on Flickr