'08 285 w/150HPDI motor upgrades

[fishead446]

Hello I have a few questions regarding a few upgrades for the 150HPDI. How much more power can be expected with a Hydro Tec Tuner? Which Type? Mega Phone or the HiPerformance Tuner. Do the solid motor mounts help any? And what would anyone suggest for hi performance upgrades. Also I have looked at all the spec's from the 150 and 175hp and the only thing I can tell different is the lower unit ratio and the EEC/ECU. So if I eventually changed lower unit ratio and put a 175 computer would that make it a 175?

[fishead446]

Sorry I moved to Yamaha Section

[darkwaterdiver]

I have a Hydro Tec tuner on my motor, and the guys at Hydro Tec told me that the mega phone tuner is a louder modified sound, while the one that comes with your recommended kit will sound more like stock and still give the same horsepower gain (7-12 hp). I was also told by the guys at C and O that I really didn't need the solid motor mounts on a 150. They said unless your going to running 90 MPH, it wasn't worth the money. When I bought my tuner, the gentleman at Hydro Tec told me how to modify my own air box, and that saved me about $200. Without going to a phase kit, I think the tuner, air box, and reids are probably the best gain for the money.