In Reply to: Quick Trip to KL From Bali - Visa Q's posted by MrMattles on Wednesday, 19. September 2012 at 19:11 Bali Time:
You will just pay the departure tax 150,000rp on leaving Bali and then another $25 VOA the day you return to Bali. There is no visa requirement for staying in KL (have not been to Kl though for 2 years, so could have changed)