Hey Brian, it as a runnng take out, but i ended up replacing the oil cooler, raw water pump and a bunch of misc parts. Motor was 7 grand plus about another 3 with all the parts etc. i gained about 5 more kts on the top end but the mid range is where it's noticable, wot is now 28 kts. Almost forgot no more black transon from the exhaust and better fuel economy