Thats good to know and I was mistaken. Was told there were big gains from porting but your feedback makes sense.I asked Sylvain @ BPS about porting the TVS way back. He told me there wasn't much to gain as they were pretty good as-is. So I just had him polish mine without porting. Then later, he ported one if I'm not mistaken...
For the gains, I'm not sure it would justify the cost.
A smaller pulley damn sure wakes them up tho!
Thanks Bob. From my highly technical finger measurements (lol) the back was a good 1.25 to 1.50" drop. Front was less about 1.00".Looks really good and I really love the paint color with the black stripes. How much of a drop did you get over factory?