Building more performance into your 1969 GTO starts with understanding how its engine, drivetrain, suspension, and supporting systems work together. Performance modification books provide technical guidance, tested combinations, installation information, and tuning strategies that can help you plan upgrades more effectively.
OPGI offers twenty-four performance modification books and guides applicable to your vehicle, covering subjects such as engine building, induction, ignition, exhaust, transmissions, gearing, suspension, handling, and engine swaps. Whether your goal is stronger street performance, improved handling, or a more extensive restomod build, these resources can help you evaluate components and understand the changes involved. Prices range from $19.99 to $41.99, with options for specific upgrades as well as comprehensive performance builds.
Every purchase is backed by our Price Match Guarantee and protected by OPGI’s 60-day return policy, so you can order with confidence.
Orders ship quickly to your door, or you can visit our Southern California Showroom & Warehouse to browse select books in person and talk through your project needs with our team.