Just for reference I did a 12.2 totally stock with RE71RS tires. Then did a CTS catted DP, and a Ecutek tune from Mototuned. Best 93 run so far was 11.60. My car is a 2020
I also have a e45 tune from them and ran a 11.45 on saturday at the dragstrip (all other runs were with dragy on the road)...