Upgrading your performance is easy when you have some new STS performance parts installed on your car. An STS performance part like a throttle body spacer will create more air flow to the engine and will help your car to make more powerful. The STS throttle body spacers that we sell are from the best in the biz and will have the best fitment and performance that you demand. When you pull up at a set of lights and need to beat the other guy, then you will be glad you have your secret weapon; the STS nitrous system. STS nitrous oxide kits are the best way to make up to 150 more ponies for your car. You will smoke the competition when you show up at the drag strip sporting a new STS performance nitro system.