header bolts
 

these are the bolts connected from the header to the overpipe, do other cars come with these no bead bolts? seems odd to me https://uploads.tapatalk-cdn.com/201...2c9be67550.jpg


Sent from my iPhone using Tapatalk

Interesting.......

I don't remember mine looking like that (17 BRZ).



Sent from my Pixel 3 using Tapatalk

I just want to say those bolts were such a pain in the ass when installing aftermarket headers for me. I sprayed some lube oil in it and it didn't work. Not enough room for my impact driver. My breaker bar barely fit and it didn't even move it.


So I used oil + torch. It was still a tough job. The nut was seized on there still so the whole stud came off.

mine is a 2018 toyota 86


Sent from my iPhone using Tapatalk

it's a common bolt. one end threads into the flange on one side and the other side is held via a nut.

Nissan has had this for their catalytic converters for the last 30+ years.

how the hell you take it out? i have the header out and it’s in the holes still, i’m hammering it out and lubed it but it’s not budging


Sent from my iPhone using Tapatalk

The overpipe there that you posted? That's the one I had a hard time with.

One side came out easily, just undid it with a breaker bar. The other side was the one I was struggling with.

I ended up spraying a ton of penetrating lube on the bolt, wearing gloves I used one of those kitchen hand-held butane torches from my roommate and kept heating it.

I think the heat made the penetrating lube go deeper into the flange and the
heat loosen the stud a tiny bit. I used a breaker bar and kept pushing at it from underneath the car. In the end the Nut did not come off, I took the whole stud screw off with the nut still on.