UNcle Lamoo and all Guys, The newly opened road from Sg. Koyan to Ringlet (Cameron) has got a few slope failure along the way (i.e. landslide/caved in). Especially about 24km away before reaching Ringlet town, the road suddenly being closed to one lane. Only Sg. Koyan to Ringlet lane passable + emergency lane. Beware of on coming vehicle as it is after a bend (cannot see on coming vehicle).
Also approaching the Blue Valley flower plantation township, beware of cross flow water on the road where you might slightly lose control if driving fast.
Furthermore, old trunk roads from Ringlet down to Tapah has got many deep potholes near the hill side (risk of sport rim dented) , beware of on coming vehicle eating into your lane...
So far the fastest time i managed to drive from Ringlet town (Indian Temple) to Tapah NSE toll plaza is about 45min, with some luck on smooth overtaking opportunity.
Drive carefully and enjoy your trip.
p/s: I also post this in the 5series thread. Just worry that you guys never read.