Senior Airman Igor Pacheco, 56th Medical Support Squadron lab technician, shuffles through a tool box while replacing an exhaust system on his 2018 Subaru June 29, 2019, in the Auto Hobby Shop at Luke Air Force Base, Ariz. The exhaust system aids in moving the exhaust gases created by the engine away from the front of the vehicle to the rear, where it is expelled. All military and dependent ID card owners can use the shop Monday-Friday, 9 a.m. to 5:30 p.m., and Saturday from 9 a.m. to 8 p.m. Auto Hobby Shop staff are available to help customers that need assistance. (U.S. Air Force photo by Airman Brooke Moeder)