The Aeromotive 13129 EFI Bypass Regulator is designed for enthusiasts seeking reliable fuel pressure regulation in high-performance street and racing vehicles. Crafted from CNC-machined 6061 T6 billet aluminum, this regulator offers durability combined with a lightweight form factor that is ideal for applications where space and weight savings are critical. Its bright dip black anodized finish not only enhances its appearance but also provides corrosion resistance, making it suitable for demanding automotive environments. Supporting applications up to 1000 horsepower, the 13129 regulator handles high-flow EFI fuel pumps and aggressive tuning setups with ease. It features a base pressure adjustable from 40 to 75 psi, allowing precise fuel pressure tuning to match specific engine requirements. The fuel pressure increases on a 1:1 ratio with boost, which is essential for forced induction applications, ensuring optimal fuel delivery under varying boost conditions.