Back in 2016 I had my ECU Flashed by Steve Sefsick in Florida whilst there on holiday and I loved the difference his Decel flash made to my 07 1400GTR, especially the low rpm torque gains, but it suffered from a flat spot at around 4k rpm that led to the throttle sometimes hunting at constant speed and whilst it got rid of most of the throttle snatchiness, there was still some there.
Fast forward to 2020 and I just had my flash updated by Michael Cox who does Shoodaben (https://sites.google.com/site/shoodabenengineering/) flashes in Europe.
I had Michael install the new Mountain Runner Premium flash and whilst this requires the use of 96RON or higher petrol, I chose this as I no longer commute so the extra cost is of Super petrol no longer matters to me. There is the regular Mountain Runner flash available if you prefer to stick to Premium 95RON petrol.
So, what's it like? Well, that flat spot is totally gone and the remaining snatchiness in the throttle totally eliminated. I went for a ride around Essex and Suffolk yesterday with some friends and got to try her out in a real world setting. We rode just about every road type apart from dirt and boring motorways/dual-carriageways and whilst Essex and Suffolk don't have any mountains, they are far from flat.
The power from 1500rpm is utterly linear, totally predictable, and utterly relentless. This gives you confidence after just a few miles to push it quite hard. I only had one minor twitch all afternoon and that was because I got overconfident on a brand new rear PR4GT. It's like having a new bike after 13 years and 75,000 miles.😁
I can't recommend Steve and Michael highly enough. Steve has developed an awesome flash for the GTR and the fast and efficient turnaround by Michael made the whole process relatively painless.
Fast forward to 2020 and I just had my flash updated by Michael Cox who does Shoodaben (https://sites.google.com/site/shoodabenengineering/) flashes in Europe.
I had Michael install the new Mountain Runner Premium flash and whilst this requires the use of 96RON or higher petrol, I chose this as I no longer commute so the extra cost is of Super petrol no longer matters to me. There is the regular Mountain Runner flash available if you prefer to stick to Premium 95RON petrol.
So, what's it like? Well, that flat spot is totally gone and the remaining snatchiness in the throttle totally eliminated. I went for a ride around Essex and Suffolk yesterday with some friends and got to try her out in a real world setting. We rode just about every road type apart from dirt and boring motorways/dual-carriageways and whilst Essex and Suffolk don't have any mountains, they are far from flat.
The power from 1500rpm is utterly linear, totally predictable, and utterly relentless. This gives you confidence after just a few miles to push it quite hard. I only had one minor twitch all afternoon and that was because I got overconfident on a brand new rear PR4GT. It's like having a new bike after 13 years and 75,000 miles.😁
I can't recommend Steve and Michael highly enough. Steve has developed an awesome flash for the GTR and the fast and efficient turnaround by Michael made the whole process relatively painless.



