Ecstas on both 04 and 07 SIs. This is the first "quiet" tire I've had on the 04. LoPros are loud mothers. I had a couple sets of Pirellis on before. LOUD. Great grip wet and dry and great in the snow. The OEM Michelins Pilots were crap that came on the 07. Damn near bald at 25K. And slippery from day one. Again slapped Kum-his on it and it's all good. People love em or hate em.