Boone580, check out www.truckperformance.com for all types of performance parts for your truck. I believe they sell jba and gibson for headers, not sure if they list edelbrocks. For those check out www.edelbrock.com. They only list up to 98 s10, but I am sure they could fit, probably has something to do with 99-up having a pre-catalytic converter. I would go either JBA or Gibson personally.