What is a MAP sensor and why would I need a 4 Bar version?

A MAP (Manifold Absolute Pressure) sensor measures the pressure inside your engine's intake manifold. The stock sensor typically reads up to 2 Bar (atmospheric pressure plus 14.7 PSI). A 4 Bar sensor is needed for modified engines that run higher boost levels, allowing the engine management system to accurately read and control boost pressures up to 29 PSI above atmospheric.

Does this sensor come with the necessary adapter and wiring?

No, this is the sensor only. You will need to purchase a 1/8in. NPT adapter separately to install it into your manifold. You may also need a compatible wiring harness or adapter to connect it to your vehicle's ECU, depending on your specific Subaru model and existing setup.

Can this sensor be used on a vehicle in California?

No, this COBB MAP sensor is not CARB approved and cannot be shipped to California due to emissions regulations.

COBB 4 Bar MAP Sensor | A22100

Name: Cobb Subaru WRX/LGT/FXT 4 Bar MAP Sensor - Plastic Manifold (Sensor Only - Req. 1/8in. NPT Adapter)
Brand: COBB
SKU: cobb-cobb-subaru-wrx-lgt-fxt-4-bar-map-sensor-plastic-manifold-sensor-only-req-1-t14-361856
Price: 209.92 USD
Availability: InStock

Cobb Subaru WRX/LGT/FXT 4 Bar MAP Sensor - Plastic Manifold (Sensor Only - Req. 1/8in. NPT Adapter)

$209.92

Only 3 left in stock

COBB 4 Bar MAP Sensor for plastic manifolds. Part# A22100. Requires 1/8in. NPT adapter. Not CARB approved.

Key Features

Fits Subaru WRX, Legacy GT, and Forester XT models with plastic intake manifolds.
Measures up to 4 Bar (approx. 29 PSI above atmospheric pressure), allowing for higher boost tuning.
Features a plastic housing for compatibility with plastic intake manifolds.
Requires a 1/8in. NPT adapter for installation (sold separately).
Not CARB approved and cannot be shipped to California.

This sensor is designed for Subaru WRX, Legacy GT, and Forester XT models with plastic intake manifolds. It requires a 1/8in. NPT adapter for installation.

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Product Details

If you're tuning your Subaru WRX, Legacy GT, or Forester XT and need to accurately measure boost pressure beyond the stock sensor's limits, this COBB 4 Bar MAP sensor is what you're looking for. It's designed to work with plastic intake manifolds and allows your engine management system to see boost levels up to 29 PSI (2 Bar above atmospheric pressure), which is crucial for modified engines running higher boost levels. This sensor is essential for proper fueling and timing adjustments when you've upgraded your turbocharger or intercooler.

This sensor is well-built and uses a plastic housing that's compatible with many factory and aftermarket plastic intake manifolds. It's important to note that this is the sensor only and requires a 1/8in. NPT adapter to install into your manifold, as it doesn't have a direct plug-and-play connector for most Subaru applications. Ensure you have the correct adapter and wiring harness to integrate it into your engine's tuning setup. Because it's not CARB approved, it cannot be shipped to California.