On my celica gts I had my HKS hiper exhaust for 18 months and all of a sudden the muffler starts to make this very annoing sound. It was a great exhaust i even replaced the gasket but it didn't fix the problem where the exhaust bolts on it doen't fit any more. its just loose and water drips even though its tight. I am really bummed so i changed it out with my old one and now i am trying to see if i can send it back to HKS to see whats up with a warrany? If you had any problems with your exhaust tell me aboute it and how you took care of it my email address is rutanjustin@hotmail.com thanks alot.
