Just got my TO4E setup and I need an adapter. I've currently got a 3" RB downpipe, and I need to go up to the 4" outlet. Is this something I could get made down at Midas (doesn't look likely) or is there a specific adapter that someone can suggest? Didn't really think too much about this part when building all this.

 

try 1 of these

http://www.burnsstainless.com/Hardwa...ps/clamps.html

http://www.stainlessworks.net

 

All depends how you want to attach the downpipe. I had all sort of headaches because no one knows how to weld a steel vband flange onto a cast turbine.
You need to find a good welder. I bought a turbine with a vband formed onto the housing. You can attach a 4 bolt flange but again, you need to have it welded to the turbine.

 

Thanks for the links. The turbo already has a v-band flange on it (didn't know what it was called before) so I just need to get one welded onto the down pipe. I should be able to find someone to do that.

 

Hmmm, the real problem is getting the 4" outlet down to the 3" downpipe. How is everyone else doing it?

 

my to4e has a 3.5" v band i just got the weld flange and clamp from a truck spares place and also bought a 3.5" to 3" reducer so it fits my 3" exhaust.