either way, you’re going to pay to make power. sure you can throw together a dturbo and all that, but seriously, how reliable will it be? if you’re not upgrading your internals and all the important little stuff, you’re car will only be as strong as the weakest link. becks car is fast, puts down like 250ish i think, and beats most anyone he’s going to meet on the street. but imo the pistons are his weak point. you throw in a stock gsr motor, turbo it, and think you’re going to put down 350-400 daily? i’d like to see it.
either way you go, you’re going to pay for the higher hp. i’d say realistically for 3k you could have a reliable dturbo, 300hp to the ground, but you won’t get much more out of it. 3-4k and you’ve got a bturbo with similar power, but room for more. i’d say step back and look at your goals for the car. do you want a snappy off the line around town bomber, or a madd tite highway pulla?