I just called them about the s256, got their answering machine, left a message and they called back 5 minutes later. Very helpful from what I could tell, can't remember who I talked to though.

 

If you ever email or talk to them on the phone ask for Raffi./

 

I will give everyone a little better explanation on these turbos.

The standard BW S300SX turbine housing uses a 4.21" Marmon flange, which is a style of V band. The adapter is used when building your own downpipe, but this doesnt allow interchangeability with other turbos that use the standard 3" V band flange (Garrett, Turbonetics, etc...). I personally like using housings modified with 3" V bands because swapping turbos becomes simple and easy.

Regarding the compressor side, BW offers two styles: straight and 90 degree outlet. The S360 and S366 are available in both style outlets. The S363 is only available with the 90 degree outlet from the factory. Over the past couple years I put in quite a few requests for the straight outlet covers and now they are available. They are special order items though, so they are more money than standard outlet. Most dealers and distributors dont know about the covers, so to get them you need to speak to the correct people.

 

Good pointers! Thanks for the info.