I have a 2008 billet mustang and I want to get off road exhuast with a X pipe twister exhuast mufflers Borla headers and steeda cold air intake (with high air flow elbow)

If I cut out my cats I am told I wont lose power but I need to trip out my o2 sensors... will the live wire tuner knock them out for me ? or do I need something special for this?

I also want to get GMS Ford 3V Coil Pack Kit, BBR Mustang GT 3V Camshaft, light weight pullys, better plugs, will I need to upgrade my clutch and rear end with these mods?

and will I get more HP with a high PSI head and valves/springs or is the stock head and springs good enough for the new cam?

sorry for my other post, I was thinking billit when I wrote it (shakes head sadly)