Hi,
It's Flash from the Rennteam board here. I found a link to this thread from Rennteam, and hence found this board. Bonus
That's 2 1/2 months since the Powerkit was retro fitted byt OPC Aberdeen. In that time I've done 3000+ miles. Prior to the kit being fitted I had done approx 7000 miles over the course of 5 months with the car in standard C4S spec. My car does not have the 'sport mode' option with enahnced throttle response though.
With more miles the difference in performance above 5000 rpm has become much more evident, however some of this may be attributed to the engine loosening off - whose to say?. As previously stated, the extra bottom end torque was very welcome, it is now very hard to stall the car when pulling away at low revs, and no need to slip the clutch. IMO the standard car is really lacking in low down torque. The midrange is phenominal. Very very strong, and continually builds urge. At 5000 rpm thimgs go into warp speed. The is more chance of bouncing off the limiter though because the car build urge all the way to... well the limiter LOL. It's a shame the limiter is a hard cut!
For some fun, try holding the car at 5000rpm in 3rd gear (or 4th gear is you are very brave), then suddenly plant the throttle all the way. Bury it! The response is electric, and the car instantly surges forward like you just hit boost in a turbo car. This is the quintessential X51 moment
Would like to see a standard C2S or C4S vs their X51 equivalents in a 5000rpm 3rd gear roll on. I would expect the powerkitted cars to walk away from the standard cars.
If you are ordering a new S model, then make sure you tick the X51 box. As for a retro-fit... well to me it's worth every penny of the £10K that I paid. I've spent a lot more on mods (for other cars) that promised more and delivered much much less. Nobody is going to be dissapointed. If someone blind tested them (well not literally blind heh heh) then they would easily be able to discern the X51 car. Likewise passengers with less experience of the car will often comment "Wow this thing is much faster and louder than I remembered". I kept the details of the kit secret from my wife (especially the price) and she noticed straight away. I attributed the improvement to a recall on the air filter
Hope this insight proves useful to someone.
Flash
