The metric turbocharger/downpipe bolts for my Cherokee are no longer available.

What can I use for replacement?

The original bolts are M8 x 1.25 x 22 with an Torx T45 head. No sign of bolt grade visible.
Shall I replace it with ARP bolts or studs?
Comments welcome!

 

Ace hardware, napa, checker, carquest and autozone all stock metric bolts.

 

I would love to visit one of the listed shops.
The sad thing is that none of them is located next to me...

These bolts have to be high heat resistant or they will fail.

 

No. Use grade 10.9 or 12.9 bolts, high temperature anti-seize and they won't have any reason to fail. Even if it has a DPF (not sure for your market) the temperatures aren't high enough to weaken the bolts unless they are overtorqued or have significant side-load.

 

No DPF

I just had in mind to be able to loosen these bolts again if necesssary.
Because access is very limited and it is easier to take out the complete exhaust as a unit than to disassemble parts.
Thanks!