AMS Performance Alpha 4 Bar MAP Sensor for 2009-2021 Nissan GTR
The Alpha MAP sensor is a reliable, bolt-on solution for accurately controlling boost levels above 24psi. Following the success of the market's first Alpha MAF sensor upgrade, which resolved driveability issues in high-output GTRs, we determined that a MAP sensor upgrade was necessary for the R35 GTR. We found that at higher boost levels, R35 GT-R control becomes imprecise, requiring a more robust solution.
The factory MAP sensor can only accurately read up to 24psi, leaving little room for a boost-cut safety function during overboost conditions. Because the factory boost control is pressure-based, it becomes ineffective above 24psi, leading to uncontrolled boost spikes depending on ambient temperature and air density. Furthermore, it is impossible to log or verify boost levels exceeding 24psi with the current equipment.
AMS uses a 4-bar sensor to enable accurate boost control up to 44psi, providing reliable regulation with a seamless installation on the GT-R. This not only regains control over boost but also improves data collection, allowing tuners to create more precise and safer calibrations.
The Alpha MAP sensor comes with the necessary calibration parameters and tuning tips, allowing for a bolt-on installation that eases the burden on the tuner. No wire cutting is required, as the sensor features a factory-style connector that plugs directly into the stock harness. It is compatible with both the factory ECU and all aftermarket engine management systems.
Features
- Robust construction using high-quality materials
Benefits
- Maintains factory boost-cut function for increased safety
- Accurately controls boost above 24psi
- 4-bar absolute pressure sensor enables reliable readings up to 44psi
- Improves data logging for tuners, allowing for more precise and safer tuning
- Bolt-on installation using the factory harness
- No cutting of the vehicle harness required! Uses the same connector as the factory unit
- Compatible with the factory ECU and various aftermarket engine management systems
Please note:
Vehicle Compatibility
- 2009-2021 Nissan GTR
Included Items
- 1 x Alpha 4 Bar MAP Sensor
Before Placing an Order
〇 Regarding Import Consumption Tax
At Shafto-ya, we cover the import consumption tax incurred during customs clearance, so there are no additional costs beyond the total amount paid at checkout.
〇 Confirmation of Compatibility
Our entire product database is based on North American vehicles (USDM). Please confirm compatibility with Japanese domestic vehicles (JDM) before ordering. (If you are unsure whether a listed product fits your vehicle, please feel free to contact us. Our support team will be happy to look it up for you.)
If you order without verifying compatibility, we cannot accept returns due to incompatibility.
Please note that even if items are sorted by year, make, and model using the tabs on our homepage, it does not guarantee that the product will fit Japanese market vehicles without modification.
All product descriptions are translated into Japanese using translation software. Due to potential inaccuracies in expression, please contact us before ordering if you have any questions.
○ Regarding Shipping
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○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
Our products are generally designed and manufactured outside of Japan. Please note that they are not compliant with "Japanese vehicle inspection standards," and we cannot provide strength evaluation documents or similar certifications for these regulations. Therefore, all parts are sold for "circuit, private property, or off-road use only," and installation and use are at your own risk.
○ Regarding Warranty
Please inspect the contents immediately upon arrival. As all items are shipped internationally from outside Japan, there is a possibility of shipping damage to the packaging or the product. We will only provide returns, refunds, or replacements for shipping damage, defective products, or incorrect items if notified within 7 days of receipt. Please understand that for products sold through us, warranty support is provided "exclusively through us." We do not provide support through other companies or distributors located within Japan.
