I developed a tick right after the first oil change at the local SVT dealer. I was hoping it wasn't the tick and it had me worried. I thought that it could be an exhaust leak and I re-tightened the system. Still ticking, I put the car on ramps and climbed under to isolate the tick-left side. I also found the evidence leading me to the cause, the left cat had been grounded and scraped. The exhaust at the manifold was leaking. The dealer service had grounded it, probably going on the hoist. They also forgot to tighten the friggin oil filter-leaked. The tick is gone and so am I from that Dealer. Ford needs to get its act together or sell these cars without a warranty for 5g's less. Friggen race to the bottom for service.