I like these two, personally. My biggest beef with exhausts is drone, most 4 cyl turbo cars I’ve been in drone like CRAZY during cruise. To the point where I want to stab my eyes out with a pen. If you have a V6 or V8, go for the loudest raunchiest exhaust you can get, because it has enough torque down low to push the air through at cruise, and not drone. On a four banger, quiet-ness is a must.