SKU: BA12700 | UPC: 700424678365
Cobb Subaru 4 Bar MAP Sensor Upgrade Kit for 2002-2021 WRX/STI Models
The Cobb 4 Bar MAP Sensor Upgrade Kit replaces the factory 2.5 bar sensor in turbocharged Subaru models, enabling accurate manifold pressure readings up to 4 bar absolute (43.5 psi boost). It fits 2002-2021 WRX, STI, and select XT variants for reliable tuning on higher boost levels. Drivers gain precise ECU data for safer, more powerful setups with Cobb Accessport.
Key Features
- 4 Bar Pressure Range: Measures up to 58.8 psi absolute pressure for tunes exceeding 25 psi boost without signal clipping.
- Plug-and-Play Design: Direct OEM connector fit with included pigtail harness, no wiring modifications needed.
- Stainless Steel Diaphragm: Resists corrosion and delivers consistent readings in harsh engine bay conditions.
- Ceramic Substrate: Ensures fast response and long-term accuracy for optimal air-fuel ratios.
- Accessport Integration: Full compatibility with Cobb tuning software for seamless boost monitoring and maps.
Product Notes
- Requires ECU tuning (Cobb Accessport recommended) to fully utilize 4 bar range.
- Inspect manifold port for debris before installation to prevent sensor damage.
Installation Notes
- Professional installation recommended.
- Disconnect battery before swapping sensor to avoid ECU faults.
- Bolts directly to intake manifold with OEM hardware torque to 2-3 Nm.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2007 | Subaru | Impreza | WRX |
| 2004-2007 | Subaru | Impreza | WRX STI |
| 2008-2014 | Subaru | Impreza | WRX STI |
| 2008-2013 | Subaru | Forester | 2.5 XT |
| 2005-2009 | Subaru | Legacy | 2.5 GT |
| 2015-2021 | Subaru | WRX | All |
| 2015-2021 | Subaru | WRX STI | All |
Why Choose Cobb?
- Decades of Subaru-specific engineering from rally-proven designers.
- Direct integration with Accessport for real-time data logging.
- Made in USA with rigorous testing for track and street reliability.
Frequently Asked Questions
- Q: Will this fit my 2018 WRX STI?
A: Yes, direct plug-in replacement for all 2015-2021 STI models with factory 3-pin MAP sensor location on intake manifold. - Q: What material is the sensing element?
A: Stainless steel diaphragm over ceramic substrate for durability and precise pressure transduction up to 4 bar. - Q: Does installation require tuning?
A: Sensor installs in minutes, but pair with Cobb Accessport protune or off-the-shelf map to scale for 4 bar operation and avoid check engine lights.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Compact retail box, 5″ x 4″ x 2″
- Weight: 0.2 lbs
Reviews
There are no reviews yet.