i have an Acura RL 3.5 and i was wondering what kind of performance upgrades i could have done to give it more power and make it faster can anyone help me?

PowerHouse Amuse have many upgrades for the Japanese RL(still called the Legend)and OPAK Racing sell Spoon products for the RL. They raced an RL in the 25 hour Thunderhill race a couple years ago.