TD04/TD05 fitted in place of T25/T28
No, the STS turbine is bigger than the L turbine, its actually the same dimensions as the HL turbine, so I'm guessing it'll spool up like the L turbine but flow better than the HL. And of course the 19t comp wheel is a whole boat load bigger than the 12c one.

The 5/4 id is less than the gasket / manifold port size so the ends need to get flared a little also. The actual exhaust port size (as opposed to the gasket size) is pretty close to 5/4.

The dual 6/4 merge is a good match for both t2 and subaru 3 bolt flanges.

The oil drains I make myself.

(The stainless tube comes in rolls and it gets cut to length. Tubing is rated for 15 bar and > deg C)
The turbo connection fitting is derived from the first principles of sweat and swearing as it involves 3 holes, threaded pipe, welding, surfacing and gasket in a 1 inch piece.

Why? way to retain the stock coolant line...
I have always been under the impression hard mounting an exhaust was/is always a no-no. This is why the OEM's don't and I personally have had a hard mounted exhaust crack/break at the mount.
Nothing wrong with hard mounting as long as its not welded directly to the pipe but rather clamps the pipe like he's doing. OEM's actually do it this way.
Good work Sturovo, your improvement is evident with each iteration
Good work Sturovo, your improvement is evident with each iteration
Good work Sturovo, your improvement is evident with each iteration
Recent stuff...
T25 kit for a 1.6 NA. with a 15mm thick manifold turbo flange tapped for fancy studs.

A t28 manifold for a 1.6 NA with an external waste gate port. The divided merge extends into the waste gate port and hopefully should help flow.

TD04 for a 1.8 NA

And some kits with 70mm downpipes

Ryan, Ben, I appreciate the kind words!
Austin, It is a bit tricky to make a full downpipe without having the matching manifold in hand as a slight twist at the turbo flange can makes a significant difference at the other end. As an alternative a replacement 60 to 70mm downpipe like this one could work.

Ray, I would like to try
Thing is that those turbos were never popular where in Slovakia/Europe so getting my hands on one may be difficult.
They were used on DSM's and evo 3's?
Meanwhile I have been working on a few Subaru based NA set ups


decent clearances

and a NB T25

Thing is that those turbos were never popular where in Slovakia/Europe so getting my hands on one may be difficult. They were used on DSM's and evo 3's?
Meanwhile I have been working on a few Subaru based NA set ups


decent clearances

and a NB T25






















'ing over those full length downpipes.. do want.