I can't get the nuts holding the stock catalytic converters to the Turbos!
The inside top one is a real B#tch, the nuts are disintigrating, I've used PB Blaster and heat to not avail. Can I sawsall the nuts off and then replace the studs on the turbo? I may or may not be not be able to remove the studs after witnessing how tight (rusted) they are.
What to do?

 

Easiest way is to crack the bolts, the studs can be replaced so no biggie if you saw it through. Just had mine changed recently and the threads on all 4 lambda's got stripped so cost me a lot for new ones also had to replace 2 studs as thy were badly corroded. Key here is to take your time but can be really frustrating at times. ENJOY

 

Crack the nuts. The tool is like 5$.

Use a proper gas burner on the O2 sensors to not strip the threads!

 

Hardly any room to get near it to crack the nuts!

 

Yeah, ENJOY

 

14 hours start to finish drilling all 8 bolts out that broke

 

While the turbos were still on the car?

 

Yup most miserable time I've ever had.... I needed the car and had no extra gaskets to remove.

 

Went with size 8 1.25 bolts after

 

I went and bought nut splitters and easy out sockets for rounded nuts.

I can't believe the nuts were flaking away when I first looked at them. Car is 6 years old but should never be that bad

 

Yea mine is a 08 bolts all feel apart...... And the while drilling out drill bits snapped inside and caused even more nightmare! Hope it all worked out for ya!

 

Bolts instead of nuts and studs, good idea.

 

I got BMW nuts as replacements, made in copper, no more issues

 

Copper ones 'are' a really good idea. Will have to buy some for mine...

 

Yes the bmw ones are locking but not "porsche-locking"

I had my exhaust on and off two times since the first pita installation