Our car feels like new again! Have an A3 TDI that ingested something bad into the worn turbo (they showed me it would've needed fixing soon, anyway). Mike's guys saved me over $1000 from the dealer using the name brand parts I would have used myself. With my recent emissions update and another major repair done by the dealer, Mike's techs also noticed and fixed several issues related to missing hardware and poorly reinstalled harnesses on their own, to bring me back to better than before. They even let me have the old turbo assembly that we plan to use to turn into a teaching tool via the AISS Foundation. Many thanks for everything!