MAC Boost Solenoid Valve BCS 4 port Turbosmart AEM Haltech E-Boost w/ fittings
Description
MAC 4-Port Boost Control Solenoid Valve (PN: 46A-AA1-JDBA-1BA) – w/ Fittings & Filter
Compatible with AEM, Haltech, E-Boost, Hondata, and More
Take full control of your turbocharged setup with this MAC 4-Port Boost Control Solenoid (BCS) – the industry-standard solution for precise and reliable boost management. Perfect for street, drag, or track builds, this solenoid allows lower wastegate spring pressures for better spool-up and greater boost control, especially in higher gears.
Unlike 3-port solenoids, this 4-port configuration controls pressure to both the top and bottom of your wastegate diaphragm for faster response, higher boost capability, and improved low-gear modulation.
✅ Performance Benefits:
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Control 50+ PSI of boost with a 10 lb wastegate spring
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Enhanced spool-up and mid-range power delivery
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Increased control at high boost levels and gear-based tuning
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Compatible with most standalone and piggyback ECUs
🧰 Includes:
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(1) Genuine MAC 46A-AA1-JDBA-1BA 4-Port Solenoid Valve
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(3) 1/8" NPT to 3/16" barb fittings (brass or silver – depending on stock)
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(1) Brass breather filter
📐 Specifications:
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Type: 4-Port Solenoid Valve
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Voltage: 12V
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Coil: 5.4 watts, 25.4 ohms, 0.45A @ 12V
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Capable of handling full vacuum to 100 PSI
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Frequency Range: 10–30 Hz (other ranges supported depending on ECU)
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PWM Controlled – works with most modern ECU systems
⚙️ ECU/Controller Compatibility (PWM Driven):
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AEM
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Haltech
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Hondata
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E-Boost
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Autronic
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Neptune
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Megasquirt
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ECtune
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Nismotronic
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VEMS
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MoTeC
💡 Why Choose a 4-Port Over a 3-Port?
4-port MAC valves offer superior boost control resolution, allowing for lower base spring pressures and tighter control across all boost levels — ideal for applications where precision matters.
📦 Ships Fast | ✅ Brand-New & Tested | 💯 Trusted by Tuners Worldwide