Nitto 555 vs Mickey Thompson ET's.  

Mickey Thompson > Nitto 555R

I couldn’t hook at all on my nt555r 315 at any mph and temp My Et street r hook at 40 mph and 27 degree ambient temps Over 600whp

You will blow those 555’s right off at the track. I switched to Hoosier DBR at the track from ET Street R and will never go back

Mickey & Nitto…both nice

I run the Nitto 555r on the street and track. My brother runs MT ETs . Night to day difference with the MTs being better. His Pontiac 76 trans am is big hp at 938 rwhp. Mine TA is low hp 330 rwhp with 440 torque. For me the Nittos work well on the track and street but I don’t have alot of HP. I will say when cold they both don’t hook at all. Will say the Nittos 555 is way better than a regular street tire. Night to day difference. Really depends on what your doing. For the track MTs ET is the best.