last night I finally removed my CATS for test pipes and now I am not getting any traction all the way through the middle of 4th gear even on this hot summer day. Prior to removing the CATS, I could easily get grip in 3rd. I am running 275 Nitto 555's, but I think there might be something better out there for DD street use. I could put on DR's, but they would go too quick. Any recommendations on a good tire that comes in 295's or 305's? I have 9.5 inch wheels in the rear.

TIA