I like them, sound very nice. How are the high RPMs? Do you think that just a single would sound as good?

 

They sound very deep with my setup. What I can tell you that at 4500+ rpm they really come to life, and they do not embarrass me. I have hear a video of a similar setup, however the guy removed the stock cats and replaced the with "hi flo" ones. Now, that sounded like crap. Very ricey over 4K or so. A single will also, in IMHO sound awesome and deep.
Personally, I give it big thumbs up. (my wife hates them as they are too darn loud for her). Go figure.....

 

These sound nice in person!

I have Street Pros on my pony, and these breathe easier...

I wonder if that does reduce the drone significantly.

We'll find out soon.

 

i've seen SOHCman's setup on putpile.com from stangnet.com.
it has *****.
i cant decide whether to get streetpros or violators or gt takeoffs