The LAP3 Uncle chip, Utune and BTR tune are all somewhat priced together (considering sale prices, shipping, etc.) with the Uncle chip being slightly less expensive. I'd suggest rather than picking one based on price that you pick the best option given your needs and car build. Just do your research and look at the pros/cons of each solution and what best fits your needs.
As to launch control, what our cars badly need (and no tune can provide) is a Limited Slip Differential to reduce torque steer and wheel spin.
As to launch control, what our cars badly need (and no tune can provide) is a Limited Slip Differential to reduce torque steer and wheel spin.