Thread: t 28 j pipe bolts

I don't think so. They didn't have the little slits in them if that's what you mean.

Edit: JK they do have slits and are locking.

those are the non locking type. the locking type are good and bad. the good they are not going to back off. the bad the stud comes out with a nut attached and you need a vise to remove the nut.

So the non-locking nuts have the slit in them?

The ones from ATP have one slit, running perpendiculer to the thread at the top of the nut. I haven't had any issues with these nut pulling out the stud, but I did loc-tite the studs in.

Fasteners : atpturbo.com

i dont see any 10x1.25 on their site..

on mcmaster's can i just use this?

Excuse the confusion. I believe you were given bad information. They are really M8x1.25 studs that you need, with matching nuts.
These are the ones: 8mm (1.25pitch) Stud : atpturbo.com

Right guys?

if they have the slits they are locking.

Hey T, be careful when you try out the new studs. My jpipe isn't a GTIR, so they may be different. Mine is from an Avenir I think, but it may be from a Bluebird. Anyhow, copy and quote from my old project thread:

I was talking about the ones on the housing that the Jpipe slips over. the ones on the jpipe that you connect the DP to, i don't remember what those are. I can check a couple with my gauge and find out though i think (if i can find that gauge).

brent

manifold and exhaust housing use 8x1.25mm and the j-pipe to dp are 10x1.25mm.