The Aeromotive 13115 is a high-performance billet adjustable fuel pressure regulator designed specifically for Honda and Acura engines from 1998 to 2001, including the 2.3L VTEC models. Engineered for precise fuel pressure control, this regulator ensures optimal fuel delivery for both stock and modified forced induction setups. It features fully adjustable base fuel pressure ranging from 30 to 70 PSI, allowing tuners to fine-tune fuel delivery according to their engine requirements. The regulator*s design incorporates a 1:1 rising rate, which increases fuel pressure proportionally with boost, providing consistent and reliable fuel pressure management during high-performance applications. It mounts directly to factory or aftermarket Honda and Acura fuel rails equipped with the factory-style mounting pad, facilitating an easy bolt-on installation without modifications. The regulator is compatible with both gasoline and ethanol-based fuels, making it versatile for various fuel blends and tuning preferences. Equipped with a dedicated 1/8" NPT gauge/pressure test port, it allows for easy monitoring and adjustments during tuning sessions. The Aeromotive regulator connects seamlessly to the stock fuel rail and return line, supporting fuel pumps from stock capacity up to high-flow units like the A1000. This ensures that your fuel system can meet the demands of high horsepower builds while maintaining precise pressure control. Built with high-quality billet aluminum, the Aeromotive regulator combines durability with a sleek, professional appearance. It is suitable for applications requiring reliable fuel pressure regulation in Honda and Acura engines, particularly for performance enthusiasts and professional tuners seeking top-tier flow and pressure control. Whether upgrading a stock fuel system or supporting a highly modified engine, this regulator provides the consistent performance needed for optimal engine operation and tuning precision.