The SRT-6 does not come in stick.
X'ed, I am not trying to be rude, but can you prove to me that there exists a more powerful engine package for less than $12,000-15,000? I believe Startech has a bolt-on supercharger kit making about 330 horsepower, for $8,000, but it is still nowhere near the power of the turbo set-up.
The Renntech/ Brabus cars don't put out anywhere near the amount of horsepower that a twin-turbo set-up would do for the money to the Crossfire (about 306 crank horsepower with Startech/Brabus 3.8 liter conversion for $14,000 compared to roughly 390 crank horsepower with modest twin-turbo boost levels). The Renntech 410 horsepower supercharger kit cost $22,000. For about the same price as the 3.8 liter upgrade, depending on which company you choose, you can get about 90 more horses. Also, from what I understand, these companies do have a warrantee, only on their parts. So if a turbo breaks, they would be responsible for the fix. Also, I feel that the Crossfire has great low to mid-range torque, which would help reduce turbo lag. I am simply not happy knowing that over about 3800 rpm, the engine seems to be loosing steam. I'm just trying to expose all of you Crossfire owners to other options available within the market.