The uprated KYB shocks are the same spec as the TRD shocks that I had on my car, they're pretty good and shouldn't pose any problems! As Glanza Ragger said, TEIN's tend to burst as they aren't really designed for british roads (well they've released a new range with dampening/spring rates suited to our shit roads, but that's a bit irrelavent) My mate had 2 sets of TEINs on his GT4 in the space of 2 years.