42lb injectors + premium 91 - 94 octane or even 100 at the track = $$$$ bling bling.
Since its turbo to you will want to drive it faster now and that means using more gas.
How ever if you can afford boost the price of gas should be your least worry.
Even with just my intake, udps, tb, exhaust with flex and race header, + bigger 18" rims I noticed my gas milage going down hill. As long as its not costing me $70-100 to fill up my tank im happy.
Since its turbo to you will want to drive it faster now and that means using more gas.
How ever if you can afford boost the price of gas should be your least worry.
Even with just my intake, udps, tb, exhaust with flex and race header, + bigger 18" rims I noticed my gas milage going down hill. As long as its not costing me $70-100 to fill up my tank im happy.