At times my pickup would misfire and lose power. After reading my Nissan check engine light code, Performance Auto Repair replaced the catalytic converter. The check engine light was not on and the truck had a lot more power. However, the truck continued to occasionally misfire and start loosing power. This would last from 1 minute to several minutes before resuming with good power. Without any engine codes indicating the issue, they continued to search for the problem. The pickup is now repaired and I can't remember when it has run so well. The total cost of repair was most reasonable for what they did. Thank you Performance and especially Lawrence! I will be using them for future repairs/service. I will recommend to friends. - Jack H (5 star review found on Google)