I'm currently installing an FP Green HTA on an EVO IX and wondering what the go is with the studs/bolts on the collector flange. I searched the forums but haven't found anything on this.

On my stock EVO IX turbo there are two studs, like wheel studs, with threaded bolts extending upwards at the front of the collector and two threaded holes at the back.

On the FP Green turbo I've received it has just 4 threaded holes.

The question is, do I just get two new bolts to use at the front on the FP turbo or try and press out the stud bolts on the old turbo and use these?

Thanks in advance

Gavin

 

they thread in they are not pressed in if i remember correctly. if you can unthread them without damaging threading then do that.. but heres the part # for new studs: MR224441

 

Just use four new bolts with plenty of never-sieze.

 

What I did.

 

Thanks for the replies

 

To remove the two studs is easy. Just run two nuts together on the stud. Once they touch against each other then you can easily extract the stud as it will rotate.

Remove the studs and run 4 bolts instead as it makes for easier R&R if you ever should need to remove the turbo again later on. There is one of the four threaded holes where you'll need to run a bolt with a smaller head than the other three(same bolt size and thread.... just a smaller head).

 

Thanks for the info. I tried the two nuts on the one stud technique with overnight WD40/thread soaker/lube to no avail. Could move the stud maybe 1 - 2 turns max before major binding.

Ended up getting some new studs and put anti-seize on them, went in easy and hopefully never have to worry again on this turbo