A-1 Custom Muffler is a local family owned and operated complete auto repair shop dedicated to protecting the health of your vehicle. We offer: All exhaust repairs: high performance exhausts; custom dual and single exhausts; antique and classic cars exhausts Computerized diagnostics Preventive maintenance MO state inspections Brake service Suspension Alignment Tune-ups Shocks StrutsAll exhaust repairs: high performance exhausts; custom dual and single exhausts; antique and classic cars exhausts . Computerized diagnostics . Preventive maintenance . MO state inspections . Brake service . Suspension . Alignment . Tune-ups . Shocks and Struts. Auto Repair