I installed an Invidia exhaust a week ago but I did not install a mid pipe. I like the sound but I want it to be louder so could I take it to the exhaust shop and have the cat cut off and a piece of straight pipe put in or should I purchase an aftermarket mid pipe and install it? And if I install an intake will it also make it a little louder as well?

 

Would this exhaust work for a GS460?

 

Yes, and so does the mid-pipe.

 

Do you have a video? Would love to hear the sound of it.
I wouldn't cut anything as it will result dent or rust overtime, preferably plug and play setup.

 

Yes, search my threads.