I've left them a message too but no reply since. Wonder what grade the stainless steel is? 304 you'd hope. I might end up doing a custom catback job. That way, i can have things done the way i want. It will be more expensive end of the day but more worth it i hope. I'll still get a XForce muffler though. XForce needs to be more informative about their exhaust system for the ZRE Corolla and list their specs/materials/components. Cant just say bla bla bla 'exhaust system' and expect people to jump at it. List your material used, pipe size, mandrel or press bent, muffler type, predicted decibel reading, pictures of the system and parts off car and on car. <_<