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Our cars are more GT cars rather than tuners, they are quick and nimble rather than fast. The mods that FP referred to are the cheapest at this point (about $1,000 roughly). If you are looking for extreme horse power you are looking at big $$$ ($8,000 - $22,000). Do a search this topic has been discussed extensively. If speed is what you wanted the SRT6 XFire would have been the better bang for the money.