OKAY....im new at this so i need some answers from the experts.
How much MilesPerGallon will the car make after a TT is installed? What about emission? will there be a problem when you take it for a smog test? THANKS

 

The MPG in normal driving will be hardly affected - not liek superchargers that tax the crank full time (which is why I hate them - the stillen sc gets 19 mpg on the HWY and 11 in the city in conservative driving).

Now, if you step on it - you will pay; you are not just getting 400+ hp for free!!!

Gurgen