How to increase torque in BMW M9?

I've noticed that my BMW M9 lacks torque in the lower RPM range. What are some ways to increase torque without losing fuel efficiency?

There are a few options you can consider to increase your BMW M9's torque. One option is to upgrade your exhaust system to a performance exhaust that allows for better exhaust flow, resulting in increased torque. Another option is to install a performance air intake system, allowing for more air to enter the engine and improve torque. Additionally, you can consider reprogramming your engine's computer to optimize torque output. It's always best to consult with a trusted mechanic or performance specialist before making any modifications. Hope this helps!