Jae350z

Hi guys, I have the AAM test pipes installed on my car with the stock exhaust. I know I have an exhaust leak from the header to the test pipe on the passenger side because i can hear it and when i go under the car i could feel the ait leaking. I have the original dounut gasket installed but it's still leaking. I was wondering if I install an extra 3 bolt gasket on both side maybe it could stop the leak? My question is what is the inside diameter of the stock header to the cat so I can get a 3 bolt gasket with the right diameter. Is it 2.25" or 2.5"? I know the aam is 2.5", so let say if the stock header id is 2.25" should i get a gasket that is 2.25 or 2.5"?
thanks.

kramykram

iTrader: (135)

just hit up berk they sell the gasket you are looking for and i would not even use that doughnut gasket.

singh

iTrader: (2)

Get a 2.25" gasket. I believe the inner diameter of the oem manifolds is 2.25"..

baspence

iTrader: (1)

and remember to put lots of the copper RTV. let it set for little while or run but dont floor it before it gets a chance to dry.

kramykram

iTrader: (135)

they make a graphite gasket now not just the copper one. no need for rtv.

baspence

iTrader: (1)

wasn't aware. when I did mine they didn't have those. thanks for the info though, I might have to redo mine when I get motivated.

Jae350z

thanks for the help guys. I called Berk for the gasket and they told me i can use a their graphite 2.5" gasket. I would thought i need a 2.25 gasket but he said that i can use a 2.5 as long as the ID is not bigger than 2.5", i dunno but that seems to be right to me.

kramykram

iTrader: (135)

yes it is right don't worry