Home of the world's fastest diesel-powered drag vehicle, Dr. Performance now offers its new Nitro Series Module for Big Three diesels. The result of 12 years of R&D, this product is engineered to prioritize pulling performance.

The Nitro module optimizes the plume of the air/fuel mixture while altering the engine's factory timing duration, causing greater volumes of energy to be released during combustion. Claimed benefits are a cooler running engine with increased performance (up to 125 HP and 250 lb-ft) and improved fuel economy. For further information, contact Dr. Performance, 2217 Old Dennis Rd., Weatherford, TX 76087, 877-338-7373, www.drperformance.com.