10 BAR
MAP Sensor
The stock sensor taps out at 50 PSIA. Ours reads to 145 — 2.9 times the ceiling. Billet aluminum. RIFE transducer. Plug-in replacement. Complete EFILive scaling guide included.
50 PSIA
Is the Ceiling.
The stock MAP sensor on your 5.9 or 6.7 Cummins was designed for a stock engine making stock boost. It reads accurately up to 50 PSIA — and then it stops.
What “stops” means in practice: once boost exceeds what the sensor can accurately resolve, the output signal compresses at the top of the range. Your ECM is receiving data — but that data no longer reflects what’s actually happening in the intake. The tuner is now working with a ceiling where there should be headroom. Timing, fueling, and boost control decisions are being made on compressed, inaccurate pressure readings.
On a stock or mildly modified truck, this isn’t an issue. But if you’re running compound turbos, an aggressive single, a high-boost tune, or building toward real power levels — the stock sensor becomes the weakest link in your data chain.
The HW10B eliminates that ceiling. It reads to 145 PSIA — 10 BAR — covering the full operating range of any realistic Cummins build. Your tuner gets clean, linear, accurate data from idle to redline at any boost level you can make.
Once boost starts compressing the stock sensor’s output, you’re tuning blind in the upper range. The 10 BAR sensor gives the ECM something honest to work with across the entire operating window.
— Ryan Milliken, Hardway PerformanceWhat the
HW10B Is
The HW10B MAP Sensor is a billet aluminum housing, anodized gloss black, machined to accept a RIFE 10 BAR MAP transducer and a RIFE IAT thermistor in a single unit. It installs in place of your factory MAP sensor using the original connector — no wiring changes, no adapters, no fabrication.
The MAP transducer measures inlet manifold pressure across the full 0–10 BAR / 0–145 PSIA range with a clean linear output: 0.5V at zero pressure, 4.5V at full scale. The integrated IAT thermistor replaces your factory intake air temperature sensor, reading to 450°F versus the stock unit’s 266°F ceiling.
This is a purpose-built competition sensor — not a modified OEM unit. Every component is selected for accuracy and durability at extended high-boost use. Available in two direct-fit variants: one for the 2007.5–2024 6.7 Cummins, one for the 2003–2007 5.9 Cummins.
- Billet aluminum housing — anodized gloss black, machined to OEM fitment dimensions
- RIFE 10 BAR MAP transducer — 0.5V–4.5V linear output, 0–145 PSIA range
- RIFE IAT thermistor — integrated intake air temp sensor, rated to 450°F
- Direct plug-in replacement — uses factory connector, no wiring or adapters required
- T15 Torx install — only tool required, 15-minute installation
- Free calibration rewrite — included for existing Hardway Performance customers
- Competition grade — built for sustained high-boost use, not occasional peaks
Stock
vs HW10B
Side-by-side on every measurable spec. The only thing the stock sensor wins is familiarity.
| Specification | Stock OEM Sensor | HW10B by Hardway |
|---|---|---|
| MAP Pressure Range | 0–50 PSIA Tops out at ~3.4 BAR |
0–145 PSIA Full 10 BAR range |
| IAT Sensor Range | Up to 266°F | Up to 450°F |
| MAP Output at Min | 0.5V = ~0 PSIA | 0.5V = 0 BAR / 0 PSIA |
| MAP Output at Max | 4.5V = ~50 PSIA | 4.5V = 10 BAR / 145 PSIA |
| Output Linearity | Linear within OEM range | Linear across full 0–10 BAR |
| Housing | OEM plastic | Billet aluminum, anodized black |
| Install Method | Direct fit | Direct plug-in, factory connector |
| Calibration Required | No | Yes — included free for HW customers |
Do You
Need This?
Five situations where the stock sensor is actively limiting your build. If one of these is you, the upgrade is not optional.
-
01
Running higher-than-stock boost Any boost level that approaches or exceeds the stock sensor’s 50 PSIA ceiling causes compressed, inaccurate readings. Your tuner is working with bad data at exactly the point where accurate data matters most.
-
02
Compound turbos or aggressive single turbo setup High-flow turbo combinations routinely push well past 50 PSIA under full load. Without a 10 BAR sensor, you have no reliable manifold pressure data at the top end of the power curve.
-
03
Your current MAP sensor is pegging or maxing out If you’ve seen your MAP reading flatten at the top of the scale in your data logs, that’s a pinned sensor. The engine is making more boost than the sensor can measure. You’re flying blind.
-
04
Accurate data logging and consistent tuning at high power Clean, calibrated sensor data is the foundation of a good tune. If the MAP signal isn’t accurate, every table that references manifold pressure is operating on questionable input. The HW10B gives your tuner something honest to work with.
-
05
Building toward future power upgrades Install the 10 BAR sensor now, before it becomes a problem. If you’re planning injectors, a bigger turbo, or more boost in any capacity, the sensor upgrade is on the list. Do it once, do it right.
Direct Plug-In.
15 Minutes.
No wiring changes. No adapters. No fabrication. A deep Torx T15 and your two hands are all you need.
Scaling the
HW10B in EFILive
The following scaling table applies to the HW10B59 on the 2006–2007 5.9 Cummins using EFILive with a CAX8 calibration file. These are the exact values to enter in your MAP sensor calibration table.
Sensor Output Curve
The HW10B MAP transducer uses a standard ratiometric linear output. The sensor is fully linear from rail to rail — no compensation tables required, no non-linear regions to account for. Enter the breakpoints below directly into EFILive and the interpolation handles everything in between.
EFILive stores MAP sensor values in kPa. The table below provides all three unit formats for reference, but use the kPa column for EFILive entry.
| Output Voltage | kPa (use in EFILive) | PSIA | BAR |
|---|---|---|---|
| 0.50 V | 0.0 | 0.00 | 0.00 |
| 0.90 V | 100.0 | 14.50 | 1.00 |
| 1.30 V | 200.0 | 29.01 | 2.00 |
| 1.70 V | 300.0 | 43.51 | 3.00 |
| 2.10 V | 400.0 | 58.02 | 4.00 |
| 2.50 V | 500.0 | 72.52 | 5.00 |
| 2.90 V | 600.0 | 87.02 | 6.00 |
| 3.30 V | 700.0 | 101.53 | 7.00 |
| 3.70 V | 800.0 | 116.03 | 8.00 |
| 4.10 V | 900.0 | 130.53 | 9.00 |
| 4.50 V | 1000.0 | 145.04 | 10.00 |
Linear sensor — values interpolate cleanly between breakpoints. Slope: 250 kPa/V · 36.25 PSIA/V · 2.5 BAR/V. All values calculated from the RIFE transducer spec: 0.5V = 0 BAR, 4.5V = 10 BAR.
CAX8 & CTZ Calibration Files
Download the pre-built calibration files for your ECM operating system. The Google Drive folder contains all files in one place.
Google Drive — CMB .CAX8 & Example .CTZ FilesIf you don’t have Google Drive, use the individual download links below to get the .cax8 file(s) appropriate for your EFILive operating system(s), plus the example .ctz tune files.
Sensor Scaling Tutorial
Watch the full walkthrough below before entering values manually — it covers every step in EFILive from opening your CAX8 file to verifying the live MAP reading.
- → Opening your existing CAX8 calibration file in EFILive Tune Tool
- → Navigating to the MAP sensor calibration table (Engine → Sensors → MAP Sensor)
- → Entering the HW10B breakpoint values — 0.0 kPa at 0.50V through 1000.0 kPa at 4.50V
- → Writing the updated calibration to the ECM with FlashScan V3
- → Verifying the live KOEO MAP reading (~101 kPa / ~14.7 PSIA at sea level)
Entering the Scaling in EFILive
FAQ
Stop Tuning
Blind.
The stock sensor ceiling is a real limit on what your tune can do. The HW10B gives your tuner accurate data across the full operating range — from idle to whatever boost level you can make. Existing Hardway customers get the calibration rewrite included at no additional cost.
