I had a quick question. Do you know if the tdx fast intentions exhaust scrapes when going over speed bumps?

And also the stillen exhaust

I'm stuck between top speed, magnaflow, and borla exhaust. Any tips to which one will give me the best sound along with power?

Thanks

So how much power would a good intake and tuner give my z? Would you recommend a short ram intake or the longer intakes stillen offers?

I wanna put a K&N intake on my Z and also get a bully dog triple gt tuner. Will that give my Z a good amount of power? Any other suggestions?

Thank you