No $280 maybe, not $380. . . See
here. $630 ($350 hx35 + $280 bep housing w/internal gate) is $250 less. You can get an external gate o2 housing and TiAL external gate save $50 from not using an internal gated BEP housing and pay $1030 total! External setup that bolts on like an internally gated 20g turbo to your current exhaust system. . .
Why are you looking at the bolton hx35 when you're also looking at the fp3065

? They are different frame sizes. The hx40 can be had in bolton form; and in that form is proven to flow as much or more and proven to spool faster. Save the $500 for a SMIM.
. . . Oh wait, you need the
vband o2 housing or exhaust hookup for the FP turbo too. . . A portmatched evo3 o2 housing is fine for a bolton hx40. OR you can buy a tubular 3" with an mhi flange for far less.
__________________
Matt
Bolton Holset H1C w/ external gate, fp2X cams, DSMLink, 3" exhaust, FMIC, water injection
"There is nothing better for man than to eat, drink, and see good for all his hard work." Solomon