ive researched and could not find if invidia makes gasket replacements for the q300 the previous owner that i bought it from accedently threw the ones it came with before he sold it to me, is there any way of getting some. ive tried the auto parts store and the ones that said will fit dont, the holes on the gaskets dont line up like they do on the flanges

 

Hello I had same problem! I tried contacting the sponsors on s2ki who sold Invidia and got no reply then I tried contacting Invidia and no answer either. So I ended up purchasing a Invidia 70mm test pipe with cel fix and took the gaskets, bolts and nuts from that and they fit my Invidia N1 single exhaust. There is probably a cheaper way but I wanted the Invidia hardware so good luck either way.

 

i had to replace one gasket on my q300, the one on the y pipe. just buy Vibrant gaskets. worked great.

 

Berk technology sells replacement three bolt "house" gaskets, and for the midpipe to split pipe I would imagine any 2.75" two bolt gasket would work just fine.

 

I wanted to replace the gaskets on my HKS dual, it's catback and comes apart in 4 pieces so there are a couple gaskets.

I wanted to put fresh gaskets in there since it is getting up there in miles, but they aren't available anywhere.

Ended up using RTV Red gasket maker, seems to work well. it's like a silicon epoxy that hardens into wherever you spread it, comes out in a tube.

 

I tried contacting them to but no answers either I'm going to try the berk tech gaskets, if I'm not mistaken it will be the 70mm gaskets right? And suprmonky was gonna try that if I could find some gaskets

 

You need 2.75" house shaped gasket and 2.75" round two hole gasket. They can be found on eBay and are very cheap.