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I am definitely not suggesting that the NizPro tune and re-propping is going to come close to the gains you can get from re-powering but with the tune and the right props (NOT SWSII) we can deliver up to 20% better fuel economy. We have been working exclusively with Ken at Prop Gods for about a...

Chris, I can line up my 250SHO customers all day long to attest to the power increase and fuel economy gains. Properly propped, you can absolutely expect 3-4mph more top end. You have a choice of RPM limit now - 6200 or 7100. Most of our customers choose 7100 and then prop to hit 6200-6400. The...

Momentary we have flashed a bunch of V-8 350s. The results are amazing. Power is increased to 425hp. The NizPro flash does not change or affect Yamaha's unwritten commitment to replace flywheels. We have several customers who can attest to this. Also the benefits of the tune and fuel economy...

Exactly. The tune of the 300s to 332hp is actually a real bump in power. Not as large as tuning the 250 to 332 but still a real bump. The big advantage to tuning the 300s is fuel savings - we are seeing average fuel economy gains of 10-12% and in some cases up to 18-20% at certain fast cruising...

Replacement ECUs are expensive ($1200-2700 each). I dont want to get "dinged" for advertising but we include flashing back to stock at any time for free (you just pay shipping). I can confirm that the YDS software used by Yam dealers cannot see that the ECU is tuned or that it was tuned (after...