Does anyone know what size bolts you use for the ZZP downpipe install? I first have to find someone to install it but I wanna get stainless bolts and hardware to use to install it with. Bolt sizes and anything else you can think of that I will need. I have the downpipe with cat and flanges on both sides and got the gaskets that came with it.

 

re-use bolts

but i believe they are M8s

 

M8 sounds about right, but I'd have the shop use new ones, if possible. Will make removal later on down the road easier, if the need arises to do so... also assuming that one doesnt break upon removal!

 

whether you use stainless hardware or not, make sure the shop uses anti-seize lubricant. it's a paste like material you brush onto the threads and it prevents the nut and bolt from rusting together. i use it here at work all the time when running gensets and i swear by it. saves you lots of time in the future.

 

The ones that connect the downpipe to the cat-back at M10x1.50

I think that the ones that connect the mani to the dp are the same size, but those ones don't get much exposure, and don't rust up like the rear ones do.

-Riggs.