does anyone know if the exhaust from road race motorsports messes with your o2 sensor???

unless it's the down pipe it won't, the axel back will have no effect on the o2 sensor.

thanks i appreciate it...i dont want to mess with the o2 sensor because my warranty will get screwed nd i dont feel like getting a new one..thanks

Buy the exhaust my friends at RPMmotoring.com have. They can help you get really good ones.