Date Added: Wednesday 06 November, 2013
Nice bit of kit but instructions could be a lot better. Easy to wrongly assemble filter at an angle so that it is not wedged square to the water bottle. Also, as others have said, the hole for the sensor is crude and does not tightly hold the sensor in place which causes idling to become erratic when it partly falls out.
Only slightly noticeable increase in performance and sound is not greatly different.
Rating: [4 of 5 Stars!]