Ya, so looks like the quattro will be down. Broke the check valve towards the back of the valve cover trying to get the hose off the valve cover (in the back, changing the gasket). Spring shot out, totally useless. Is there any quick fix i could do, short of putting a new check valve in? Would just taking all of that out plus the SAI be the 'quick fix'? I have to order some, guess i should plan to walk everywhere for a bit....in downtown tacoma....with a gun...