Don't believe the b/s HP claims that vendors try to feed you. True is most are full of s**t. It's a marketing strategy to get the customer to purchase it. Thankfully you bought the car with it so you didn't waste your money on it.
Getting 300whp isn't exactly is it takes a lot more mods like a intercooler and cam to pull that off.
Plus our trannies are already week. Added power just adds stress.