could it be heat shield?
or exhaust manifold?
i've searched but i ended up to those two questions above,
if someone can tell any'bout it will be appreciated,

thanks,

O J

 

Most likely your cat heatshield, just get under the car and check them out. And sometimes it could just be a couple rocks got trapped in between and are rattling around. If its the heatshild you can just remove them.

Ali

 

I have never heard an Integra that doesnt rattle... Maybe its just me though!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ILoveJDM. &raquo;</TD></TR><TR><TD CLASS="quote">I have never heard an Integra that doesnt rattle... Maybe its just me though!</TD></TR></TABLE>
This guy speaks the truth.
My brothers dc2 does nothing but rattle.

 

Could be the A pipe.

 

Lol, not totally rattle always, but vibrate constantly!

 

before my exhaust install i realized my stock heatshield on my cat was held on by 1 weld point out of the 4.

 

mine was from my headers. theres a heat sheild on the front of the header and one behind it. the one behind it is a bitch to get out you have to take the whole headers out to take it off. after i purchased new headers the sound went away.

 

is your exhaust manifold stock. my stock manifold was rattling because it id double walled and the weld broke internally and would rattle at certain rpms. it was impossible to weld so replace it with a dc header(considered stock replacement part).

 

I had this problem once, at only certain rpm like that. I took half of the heat shield off the cat and bolted down only the top half... it stopped...

 

I also had this problem, if you have an older aftermarket exhaust like DCSports it could be the resonator as well as the muffler packing inside..........

more than likely its a heatshield........

 

I have the same problem, that's why i bought the dc header. Stock manifold

 

my dam heat shield rattles around 3-4k and stops, so it might be ur heatshield