Behind every Turbosmart product stands a long and rich racing history. While a majority of Turbosmart products are used on street cars, their design and testing procedure is identical to the high-end purpose-made racing products. Before reaching the consumer, Turbosmart products are subjected to a range of tests performed in the most demanding environment, the race track. Catalog Installation Instructions Brochure - A general brochure describing a brand, company, product line. If brochure in question is for a specific product, use code PDB.