I figured as much. Ive been trying to sell the car lately to buy a t2 instead of swapping. Itll cost more to swap in the long run

 

9.0 turbo rotors are the best median, decent for high boost with decent response. you can raise the compression ratio like series 4 non turbo rotors which are 9.4:1 but the higher you go in compression the less boost you can run safely. the s5 n/a rotors being the least safe besides renesis RX8 rotors which are 10:1. even 9.4:1 rotors it isn't a good idea to push more than 13psi of boost on with pump gas.

 

I keep forgetting some of these cars have those >.<

 

None of the cars ive ever owned have had the cats for too long...not a problem here in KS. Silly emissions laws in other states