this setup looks ok to me... but i still have doubts on putra oem muffler..
ur car is auto or manual tranny??...
putra oem muffler is s-flow muffler??...
u want quiet or vroom vroom muffler??...
Voltage Stabilizer, Voltage Regulator, Power xxxx, whatever... These are some big marketing words out there to promote these products. Many many brands out there all doing the same thing... Stabilize voltage, remove...