I have a 2011 V-8 SS2 camaro and I want to put some headers on her. I have already 2 single chamber flowmaster mufflers on the stock pipe and a K&N cold air intake... I want to step it up a notch...I have a few questions??

1-Headers?..what kind and should I keep the cats on the pipes or remove them?. the +/- of both options..

2-Shouls I keep the 3" pipe or downgrade to 2.5"?

3-If I remove the cats do I have smog issues (I live in CA) I assume I void the warranty..yes/no?

4-Does anyone have any good dealers that I can purchase them from?

Thanks for all the input...

T-Rip