J.R. Jones Racing LLC Catalog

1998 - 2006 GM LS Tune Files

Explore tuning options for early GM LS builds, including the listed Silverado and Sierra Truck Norris, Chopacabra and Stage 3 cam products.

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1998 - 2006 GM LS Tune Files

5 Products

Explore tuning options for early GM LS builds, including the listed Silverado and Sierra Truck Norris, Chopacabra and Stage 3 cam products.

Compare each product's vehicle range and requirements with your installed engine and cam before ordering. Use the tune builder to configure a remote service, or the downloadable .HPT library to find a specific ready-made file.