Hey guys, I've seen some quad tip set ups.. what inches would fit and look good? I was thinking of doing dual 3.5", I have a 2015 IS but am switching to a 2017/18 diffuser so I don't have it with me yet. Want to fill up that hole nicely.

https://www.ebay.com/itm/Pair-quad-3...53.m1438.l2649

was thinking about getting these, thanks in advance

 

This is about a 4" tipped quad

https://www.clublexus.com/forums/per...exhaust-4.html

 

I have quad 4" tips with the stock 17+ diffuser.