90$ MY *** BUY SOME MORE THAN / i was at a dealer and core is 400$ for h300 , as u can see in my pic i need a new evgt acctuator(dealer quoted 300$)
but anyway Holset with vgt electronic or pnemonic is like a sequantial TT. It changes the exhaust housing and wheel size but sliding diaphram. So of the line u use smaller housing/wheel for fast spool and than diaphram opens up the rest of the housing and the whell for max power production. Holset uk web has nice pic's in multimeadea sechttp://
www.holset.co.uk/files/2_5_1_5-VGT.php