Post some audio of the sound when you are done

 

I'm putting Summit Racing 2 chamber race mufflers now.

it's going to be loud.

 

that's overkill on a NA motor. IMHO

 

Could you post a video of how it sounds please?

 

I remember reading a thread in the club lexus vendor section where RR Racing mentioned they were going to start looking at a 3 inch dual exhaust for the ISF and assess it. A few people got excited about it knowing the effort RR puts into development and testing. This was after the supercharger release. This was a few months ago. Haven't heard about it in a while.

 

This was the one:
https://www.clublexus.com/forums/cl-...velopment.html