ACE Header install issue
 

Hi all, I have a 2019 86. I've been working to getting ACE A350 headers installed, but ran into a problem. I got the stock exhaust manifold off, but as I went to install the ACE overpipe, I realized the headers don't come with the studs to mount the overpipe to the front pipe. Am I supposed to remove the studs from the stock overpipe to use with the new one? I don't have a ton of tools at my disposal and getting the old studs out hasn't worked yet. I do have them soaked in PB Blaster right now, so I'll give them another try tomorrow.


At this point, I'm thinking that just buying new studs is the way to go. Can anyone point me to an exhaust parts diagram with the studs showing the part number? Did anyone have a similar experience? Any advice?


Thanks

Should just have bolts that thread into the overpipe flange. I they're m8x1.25 thread pitch.

I had no bolts that went to the overpipe flange, only studs in the stock overpipe that were not wanting to unscrew for me. I ended up going to a dealership to get fresh studs and those worked great. I got my header installed and I'm now working on getting the tune done.