This is free and you can do it yourself... it is from the old school and it works... for an extra horse or two, maybe more, reach down in the engine compartment and unplug the vacuum hose leading to the ERG Value, plug the hose up with a small screw, are whatever, and the ERG Value will not open and therefore will not allow exhaust gases to feed back into your combustion chambers, therefore allowing more room in the chamber for good ole fresh air and fuel mixture... give it a try and see if you don't notice the difference. It may be just the thing that you’re looking for, you know a horse at no charge, but remember you'll need to hook it back up before you take the Crossfire into the dealership fro any type of repairs or servicing, and also you will be running your engine outside the laws governing emission control. But what the heck "I'm a pirate."