.70 is a 12cm housing. Got a BW part number? Looks to be either s400 based or some Garrett turd from the v-band clamped compressor cover. All aftermarket and many stock s300's have a bolted to the center section compressor cover, not v-band clamped. A little thing, but should be noted, you'd have to do something with the compressor to intercooler boot. This is hose clamp versus every other s300 on the market's v-band style. I'd offer half of the asking.

 

bill, these are the numbers i found and wrote down...

on the comp. housing:
669813 B | 055T

turbine housing:
699519
HSM187
070 H (.7 a/r)

 

Jim it could also be an s300 variant as there are many just like hx35's and 40's. You would want a part number from the center section. But if it is an s400 variant I'm sure the data tag has long been removed.

 

thanks bill. i didn't think to check the center section for a tag. i remember, now, that the schwitzer/borg warners tags are on the center section. i'll see if the seller can snap some pictures of the data tag, if, like you said, one still exists.