Sorry for this dumb question but the search function didn't help much. Does Garrett or anyone else for that matter make t3/to4e turbos with either a 4 bolt or 5 bolt pattern for the dp to bolt to? I thought I saw that they used to be 5 bolt and were going to be 4 now or something along those lines. Someone please straighten me out a bit.

 

Turbonetics uses the older 5 bolt Ford Sytle flange while the New Garrett Ballistic Concepts turbos use teh new 4 bolt flange.

 

all I know is that all the new Garret turbos are using the new 4 bolt style.

I do not know about other companies however.

Becuase most of the turbo setups are now using external wastegates, they did away with the space on the turbine housing for internal gates.

 

Thanks for the replies, I kinda thought it was something along those lines.

One more question, any recommendations on going with Garrett or Turbonetics? I have a GSR and will be using the inline pro T3 mani and I currently have a rev hard 5 bolt dp sitting around (if needed I will either modify or sell the dp if I go 4 bolt turbine). Thanks again