Looking to move into an 88mm so this one is for sale. It's a masterpower 67mm t4. .81 AR on the exhaust side .70 on the compressor side. Works good no issues at all. Only has about 10 track passes and a handful of dyno pulls on it. My car with the hci 302 made 510 @the tire and the new 331 made 590 on 12#. Paid 525 when I bought it new I'd like to get $400 for it. Lemme know if any of u guys are interested thanks.