I brought in a '06 Ford F150 4X4 that was misfiring. Thought it may have been a bad coil, and wanted to replace plugs while Steve and his team were fixing the coil, did a full transmission service as well as a full service on the rear differential. Steve quickly identified the bad coil and attempted to remove plugs. This F150 had the Triton 5.4 liter gas 3 valve engine and it is notoriously difficult to replace plugs that have been in the engine for 70K miles. Even though the plugs did not want to come out initially, Steve placed some PB Blaster on the plugs and let them set overnight, did the trick and he removed the plugs with a wrench the next day. Everything else was in great shape and Steve reviewed the diagnostic results with me. Steve's prices are fair and he is customer service oriented. Couldn't have asked for a better outcome. If you have some engine work that needs to be done right and at a fair price, give Steve and his team a try, they have a great warranty too.