Quick question after header install

[98IntegraRS]

I installed my Dc sports 4-1 header on my 98 RS the weekend..
I also noticed, I have a Magnaflow Hiflow cat converter, who know!!

Well on the old exhaust manifold there was the metal gasket ring on the end, so I figured it must get re-used, I put it no the dc sports header, put everything together and now i get this buzzing noise when accelerating..

Is it from that metal ring on the outlet or is this the cat's heatshield? What else could it be
Should i of not used the metal ring, and the header would of been a direct bolt onto the cat?

Sadly, I don't know the inlet/outlet size on the header and cat

thanks guys

 

[98IntegraRS]

anyone?

 

[jason.az1]

Kinda hard since we are on the internet bud, try jacking the car up have a friend rev it while your under it with JACK STANDS and see if you can pin point it

 

[jdmjim]

Knock on the exhaust and listen for rattling

 

[Rich-PMS]

The metal ring is an exhaust gasket, it shouldn't rattle at all.

Try tightening the bolts up some

 

[erickoPR863]

how do i take out the front ac dash vent of my 94 integra? do i have to take out the whole console? im new here bare w me... thankx

 

[erickoPR863]

how can i tint my high beams yellow? where i buy it at ? i dnt wasnt it to look ugly i want it to look like the head lite came da way... anyone?

 

[BigMac88]

If it sounds like buzzing bees in a can, you have an exhaust leak somewhere. Probably at the collector.

 

[bradster101]

take it to a shop... The place by my house will look at them for free and then tell you if you have any problems or leaks.....

 

[j13]

Re-using the metal gasket was the problem.

When a gasket is new it is thick, when you tighten up the header-cat bolts you smash that gasket, making a good seal. Since that old gasket was smashed already your not going to get a proper seal. Doesn't matter how much you tighten it.

Same goes to a drian plug, copper crush washer.

 

[SpooledupRacing]

leak at the old gasket.. buy a new one and fix