If you're looking for ways to keep up with the pack - or blow right past them - this book has 101 of them. Boost the performance of your Harley-Davidson's Twin-Cam engine with 101 projects broken out by each specific aspect of the motorcycle, including engine, suspension, transmission, exhaust, brakes, and body. Hundreds of photos and diagrams take you step-by-step through each project making it a breeze to keep other riders in your rearview mirror.