I respect your stance on the QR, but i just don't think that it can offer anything the SR can't. In a previous post you have made, you've stated that SR's have headlifting problems due to faulty threading within the block from the factory. I have yet to see this in person , with several people running over 18psi-22 psi of boost on the stock headgasket/bolts, I just don't see how this is (not doubting your abilities as a tuner).Bottom line is , the SR will be able to achieve just about anything you could want out of a street car with the factory internals (bottom end to be more specific) still intact.Their are many other reasons why SR swaps are popular , and it's not just becuase they are JDM. I honestly do not think you will see many/if any people with S chassis cars swapping QR's in their vehicles.