I have an LLT with vararam, mace 25mm isolator spacer, otherwise it's stock. I'm coming into a little play money, enough to either get a boxed tune, like a Hypertech (please don't flame here)
, and a ported throttle body, OR a custom tune. Not knowing firsthand what the seat of the pants feel would be with any of these mods, I don't want to waste my money on something that isn't going to make a big difference.
What would be my best option here? With my limited mods, would I see a better gain from the basic tune and throttle body, or a Trifecta tune or similar? I know the boxed tune is basically just making the shift firmer, but I'm not going to be modding a lot more, anyway. Headers or exhaust way into the future is possible, but not real probable any time soon.