Ok i was lucky enough to get my downpipe off easily. Now i am curious if i should replace the studs on it and nuts since i have it off. 3 out the 4 studs came right out.

What should i use to replace studs. Can anyone tell me what i need?

thanks
brian

 

Grade 8, or 10.8 M10x1.50 studs, I believe 20mm long. I would replace them, and USE ANTI SEIZE!

Lock washers are a good idea too.

 

I kept the studs on all but the very bottom/rear most hole. It's the only one that presents a clearance issue when bolting up the DP.