I have both a bad ass twin turbo car and a NA car for a couple of reasons,
I bought my car initially with a Roe S/C, due to a bad tune the car was hurt so bad that I had to rebuild the motor... in the process I decided to go with the twin turbo setup. Now, the car is awesome but not as driveable on the street as I would like.. in the west Texas heat and stop and go traffic I cannot run my A/C because the car heats to quick... even with the AEM and the boost on the lowest setting the car screams!
My NA car is a Venom 650R package dynoing right under 600 rwhp and rwtq (numbers are essentially identical within a couple of points). It has a really aggressive head and cam combo that sounds awesome, is super driveable, and still pulls hard! I can idle all day long with the A/C on, idle around town with no issues!
In short, for a lot less money you could have a head and cam setup installed and see how you like it... then add on later if you wish...
For everyday viper cruising my pick is my head and cam car... doesn't perform anything like the TT, but I save that one for special occasions!
Like spanking busa bikes.... hahaha
