Modular Combo Block 4-Ports & 2 Channel

The Modular Combo Block 4-Ports & 2 Channel by TURBOSMART USA is a precision fluid management component designed for turbocharged and supercharged engine builders who demand refined boost control and reliable pressure regulation. This modular block serves as a central manifold for routing boost signals, vacuum lines, and pneumatic controls throughout your forced induction system. Whether you're tuning a street car, track-focused platform, or high-performance daily driver, this component simplifies plumbing complexity and reduces installation time by consolidating multiple connection points into a single, organized hub.

Built to TURBOSMART's exacting standards, the Modular Combo Block features four distinct ports and dual-channel architecture, allowing simultaneous management of boost pressure, wastegate control, blow-off valve signaling, and auxiliary pneumatic functions. The compact aluminum or ductile iron construction (standard for TURBOSMART manifold blocks) resists thermal stress and vibration fatigue common in engine bays, while the modular design permits customization through stackable components. Weighing only 0.74 lbs with a footprint of 3.95 x 1.5 x 9.15 inches, this block mounts cleanly in tight spaces without sacrificing flow capacity or signal response integrity—critical for maintaining precise boost targeting and wastegate modulation across the RPM band.

Technicians and enthusiasts building twin-turbo, single-turbo, or centrifugal supercharger platforms benefit most from this block's flexibility and reliability. It pairs seamlessly with TURBOSMART electronic boost controllers, mechanical regulators, and standalone ECU tuning setups. Installation typically requires basic pneumatic fitting knowledge and integration into your engine bay's boost signal architecture—consult your tuning software or TURBOSMART documentation for port-to-function mapping specific to your application. This is an OEM-quality component for serious builds, not a generic aftermarket part, ensuring consistent performance and long-term durability under elevated boost pressures.