Labor costs: The labor involved in replacing a flex pipe can range from $100 to $300, depending on the complexity of the job.
Parts: The cost of a new flex pipe can range from $50 to $200, depending on the make and model of your vehicle.
Shop rates: The hourly rate charged by auto repair shops for labor can vary widely, typically between $50 and $150 per hour.
In general, you can expect to pay around $200 to $500 for a flex pipe repair on a Nissan Maxima. However, it's essential to get quotes from multiple reputable auto repair shops to compare prices and ensure you get a fair deal.