Allright
Any one know what the pitch and tread is on a t3/t4 4 bolt exhaust housing I got the Turbo and the Flange but no bolts?
What size nut for a o2 bung on the down pipe?

I think thats it also if any one has a wireing diagram for a HKS turbo timer could you hit me up with it..

 

Carry your turbo into your local hardware store and plop down in front of the nuts'n bolts bin. For some reason M10x1.25 pops into my head, but so do ****...so who knows.

The same for your O2 bung.

PS,
You can buy weld-in bungs off of (hehehe...bung....) Summit or was it JCW.

Careful about heat control when welding them in (warpage). My brother tried to be careful about it, but when I took one out last week, it left the threads behind.

 

10X1.25mm or 10X1.50mm I'd guess. I have regular Honda exhaust manifold nuts on my T3's exhaust :>

 

O2 Sensor bung thread M18 x 1.50

just get a nut with that thread, then weld it in. pulse weld it or u could warp it.