If you’re upgrading a vehicle with low vacuum or seeking reliable hydraulic assist without engine vacuum limits, an electric remote power brake booster is a practical choice. This guide highlights five top options, explains who they’re best for, and helps you compare key features like mounting flexibility, brake pressure output, and compatibility with front disc and rear drum setups. Whether you’re restoring a classic, building a hot rod, or upgrading a modern car with limited brake boost, these selections cover common installation challenges and installation locations.
Summary table of selected products
| Product | Best For | Key Benefit | Notes |
|---|---|---|---|
| Electric Brake Booster and Master Cylinder Kit (Speedway) | Low vacuum engines, space-saving installs | Remote mount design, up to 2000 PSI | Disc/Disc compatibility |
| Universal Compact Electric Brake Booster Kit (Speedway) | Custom builds, limited engine bay space | Remote mount; up to 2000 PSI | Supports front discs and rear drums |
| Electric Brake Booster & Master Cylinder Install Kit (Speedway) | Firewall-clean installs | Small master cylinder, remote mounting | Disc/Disc configuration options |
| Remote Power Brake Booster 7 Inch Universal | Classic cars with limited engine bay space | VH44 style; 820 PSI output | Removable from firewall for vintage builds |
| VH44 7″ Remote Brake Booster & Bracket Kit (AKWH) | Classic models with drum brakes | Direct compatibility for drum setups | Includes fitting kit |
Electric Brake Booster and Master Cylinder Kit for Disc Brake Systems
This kit uses a 12-volt electric brake booster to deliver up to 2000 PSI of hydraulic pressure, making it a strong option for vehicles with limited vacuum or boosted engines. It is designed for Disc/Disc brake systems with a 1-3/16 inch bore master cylinder and remote mounting to save firewall space. Best for enthusiasts upgrading modern vehicles or hot rods with front and rear discs, who want a compact install and robust power assist.
Best for: Vehicles with low vacuum or boosted engines that still require reliable, high-pressure braking. It’s especially suitable for builds that want to keep the firewall clean and uncluttered. Limitations: Remote mounting requires precise alignment with hoses and wiring; ensure the master cylinder position works with your pedal geometry.
Universal Compact Electric Brake Power Booster Master Cylinder Kit 12V
This kit targets engines with large cams or low vacuum by providing a dedicated electric booster that can deliver up to 2000 PSI. Its compact master cylinder and remote booster allow flexible placement on the firewall, frame, under the dash, or under the floor. It’s well-suited for custom builds where space and routing are critical, and it supports front disc and rear drum configurations in traditional disc/drum mixes.
Best for: Custom builds or boosted engines needing strong, vacuum-free braking with placement flexibility. Better for: installations where firewall space or under-dash routing is constrained. Caution: Verify your vehicle’s brake line routing and clearance around the steering column and pedals.
Electric Brake Booster & Master Cylinder Install Kit (Disc/Disc)
This kit focuses on providing a clean firewall appearance while adding power brakes to engines with low vacuum or boosted performance. The master cylinder size is compact enough for firewall, under-dash, or under-floor placement. It supports disc/disc configurations, making it a practical choice for modernized classic cars and performance builds that require tidy engine bays.
Best for: Installers who want a compact master cylinder with flexible mounting options for disc/disc systems. Choose this if you want a more concealed booster setup. Limitation: Remote mounting may require careful routing to avoid interference with heater hoses or wiring harnesses.
Remote Power Brake Booster 7 Inch Universal
This VH44-style 7-inch remote power brake booster is designed to significantly reduce pedal effort for classic cars and hot rods. It enables a remote mount on the frame rail or under the floor without major firewall modifications, making it a practical upgrade for vintage builds seeking smoother, safer stopping power. Output is 820 PSI with a 5/16-inch bore cylinder, matching drum or mixed brake setups common in older vehicles.
Best for: Classic or vintage builds where firewall space is tight and a moderate boost is preferred. Choose this if you want a remote solution that preserves original under-hood aesthetics. Limitation: Specifically designed for drum or mixed-drain drums; verify compatibility with your current brake configuration.
VH44 7″ Remote Brake Booster & Bracket Kit
This AKWH product provides a 7-inch VH44 remote brake booster designed for vehicles with drum brakes on both axles or as a replacement for several classic applications. The kit includes a universal fitting kit and is intended for straightforward bolt-in installs where a factory booster is not present. It is a practical option for restoring period-correct braking performance in classic cars.
Best for: Replacing or upgrading drum-brake systems in classic models with a driver-friendly installation. Better for: Vehicles needing a simple, bracketed remote booster solution. Caution: Confirm the kit’s compatibility with your specific make/model, especially if you have unique drum brake configurations.
Buying Guide: Key Purchase Considerations
- Brake system compatibility: Most options support Disc/Disc or Drum/Disc setups. Verify your car’s configuration before choosing a kit to ensure proper master cylinder bore size and pushrod geometry.
- Mounting location: Remote mounting saves firewall space but requires careful routing of hoses and wiring. Consider firewall, under-dash, under-floor, or frame-mount options based on your build and engine bay layout.
- Boost output: Look for kits delivering up to 2000 PSI for confident stopping power. For classic cars with drum brakes, ensure the kit is rated for drum or drum/disc combinations as needed.
- Electrical requirements: 12V systems are common. Confirm your vehicle’s electrical wiring can support the booster’s power draw and that installation includes proper wiring harnesses and fuses.
- Installation complexity: Some kits include mounting hardware, hoses, and wiring, while others may require additional fittings. Choose a kit that matches your fabrication skills and available space.
- Firewall aesthetics and accessibility: If preserving a clean engine bay is important, prioritize kits noted for firewall clearance or concealment.
Frequently Asked Questions
- What vehicles benefit most from electric remote brake boosters? – Vehicles with low engine vacuum due to large cams, boosted engines, or modern engines that lack sufficient vacuum assist.
- Can I install these kits on classic cars with drum brakes? – Yes, some kits are designed for drum or mixed brake systems, but verify the output pressure and cylinder bore to match your configuration.
- Is firewall clearance a major concern? – It can be, especially for remote-mount boosters. Look for kits that advertise firewall-friendly installations if space is tight.
- Do these boosters require special wiring? – Most require a 12V power supply and standard wiring harnesses. Some kits include the necessary wiring; others may need additional components.
- Are these kits compatible with ABS systems? – Many classic car installations use non-ABS setups. If your vehicle has modern ABS, verify compatibility with your braking system design and consult a professional if needed.
- What maintenance is required? – Regular inspection of hoses, fittings, and electrical connections is recommended. Follow any included installation instructions for service intervals.