I myself would change out all the studs and nuts without question.

They are a metric size M8 x1.25. The stock studs are 30mm long with 10mm section that goes into the turbo and a 4mm shank and another 16mm threaded section.

Also I would get nordloc lock washers which would necessitate a little longer stud if the flanges on the aftermarket exhaust are thicker then factory. Here is one web page with some stud info just FYI. http://catalog.automotivefasteners.c...s/metric-studs it shows both 30mm and 35mm long studs and many more.

Here are the Nord Lock washers. They seriously are the chit for exhaust type flanges. Not 100% necessary just a very very good touch to hold your exhaust on. http://www.nord-lock.com/products/mu...wedge-locking/

I would use stainless steel nuts to, hey they are, you guessed it, M8x1.25 as well.

The turbo flange dounuts are reuseable many times but if they are bad they are done and do you want to be waiting for such a part down in the U *** Eh. <-- That's Canadian speak for America.

 

Hi All,

I don't know about anyone else but immediately after changing my exhaust system from stock to a Fabspeed with 100 cell cats I have had a check engine light. We tried relocating the o2 sensors more out of the air stream which didn’t help. And still haven’t got the problem resolved
Codes are the usual
P0410
P1411
I know they are secondary air faults and may not even be directly related to the exhaust change, but it happened at the same time. Could even be a vacuum leak. I have no clue.

My “Indy” who sold me the exhaust system says there is nothing I can do about it.

I’m not trying to hijack this thread, just letting you know that I had problems. But I love the sound.

Regards,

George_B

 

Maybe get a 22mm O2 socket wrench and a fine ratching 13mm box end wrench for the 8 turbo flange nuts. Blaster is good but Kroil is even better.

 

I have an exhaust on order, would rather replace gaskets and hardware than reuse
Where did you source the hardware? Im in Calgary.
Ill just get the gaskets from South Center.
Thanks

 

Bowness Auto, Napa, Auto value sells a 8 pack made for Ford cars that are longer if you want longer ones. You would have to cut off the longer end down to 10 mm, the one with the Octagonal wrench extension, they would be perfect for use with NordLocks and the stock turbo heat shields.

I made my own out of stainless in the end.

What did you order for an exhaust?

 

Thanks
Went with a SpeedTech 2.5
Should be shipping next week

 

Well we'll have to get together to compare sounds and such. U putting it on yourself?

 

check the voltage of the o2 sensors maybe one is going def/ second o2 sensor should be around 1,5 Volt

if okay your secondary o2 sensor tolerance can adjusted to tollerance a 100cell

secondary air system failure are often a def divertervalve/do a leak test on both sides vacuum and pressure side

 

Going to do the install myself with a floor jack and put the rear on stands
Looks pretty straight forward.

Ill let you know when it's on and we can go for a drive

 

You will love it. Not sure if you have seen this thread, but it may give you some nuggets reference straps and emissions:

https://www.6speedonline.com/forums/...w-exhaust.html

Still love mine! Enjoy!!!

 

Would any of you guys use any thread locker installing new studs into the turbos?

 

Thanks I am excited to finally get the exhaust. Running out of driving season quickly!!!
Do you have the links handy to bumper removal?

 

Here you go! Super easy.

http://www.renntech.org/forums/index...tion-pictures/

 

I would not. The opposite is true and it seems like the problem is the bolt/studs seem to rust/gall themselves together and removal is more the issue then nuts loosening. I personally use anti-seize on the threads when I re-assemble.

 

Pulling them out was easy. I rented autozones metric stud puller. It was a breeze!!!