Originally Posted by
justinfox
Yes I checked the Spec IV. One piece and it's ridiculously light. A lot lighter than the dual Pro Spec I have (I love light weight so I was a little upset it wasn't insanely light lol). The Spec IV's had mixed reviews on the sound. How do you find it? Apparently it's more of a raspy sound whereas the Pro Spec is super bassy and deep.
I've got a fair bit of in cabin drone coming from this exhaust. It's pretty loud from inside the cabin, you can drive it in a way that you don't get much drone... something I will perhaps get used to. But the gains made are great. I suppose gains come at the cost of noise.