hey guys, over the past couple of days ive noticed that my car doesnt accelerate as fast at all. My muffler broke off my b pipe about 2 weeks ago but i dont think that wud cause it to decrease perfomance. Right now im guesing it prolly takes me like almost 8 seconds to get to 60mph..

 

it could be anything, but if u haven't changed your knock sensor for about 4-5 years then it's probably a knock sensor