NinjaTech

i got info that the rattle at 6000rpm might be the heat shield on the exhaust. - Sorry if i sound like a newb, which i am but where exactly is the heat shield? - and can i fix it easily at home?

SL!M

Yes, easily. The heatshield is above the catalytic converter (the one that usually breaks). Its held up by a couple bolts, jacking the car up securely will take longer than the actual process of removing the heatshield. I hope this helped a bit. Good luck.

NinjaTech

What does the heatshield protect? Do i really need it? will it void my warrent?

Lmgrcivic

it protects the bottom of the car from the cat. but no you dont really need it, its not really big deal