Thats my only concearn it's like I love the idea of the z but no practicality ... But the ringland concearns me then people saying stage one I'm not going to void the warranty, so I'm worried about that reliability but I don't know out of the millions plus the sti got more reliable ratings and "recommended" by consumer reports where as the 370z got worse reliability and not recommended. Justwant to know its a good ill Truro listen to you