he legacy of Bo Xilai, the ousted regional Communist Party chief, endures in this southwestern Chinese megacity with its four-lane highways, expanding factories and hundreds of thousands of new apartment units. While Bo remains under house arrest in Beijing, longtime residents hail what they describe as the transformation during his four-year reign of what not long ago was a provincial, insular, inland city. For the most part, a new regional leader appointed by the central authorities appears to be moving cautiously for fear of antagonizing Bo’s many backers.