Added like 50 hp to my car and the sound is awesome , you fill like you are in a dragster IT IS AWESOME AND I INSTALLED IT IN 10 MIN SO SIMPLE TO INSTALL!!
First of all it took me like half a minute to install, just make sure its super thigh and twist it a bit, I put this in my e55 Mercedes and now it sounds like an AMG lol , i recommend it it sound cool AF get the large .
Works great just make sure you lock tight all the bolts and screws and tighten it on good it’s been working great for weeks now and sounds great!
At first I thought this wouldn’t work, I decided to buy it for the hell of it. I put it on and it made my car so damn loud. I get lots of looks by random people driving and walking, this is a great product.