Cobb Tuning BMW N55 Accessport V3 - AP3-BMW-002

Part #:
AP3-BMW-002
$643.50
MSRP: $715.00
On Sale
You save $71.50
In Stock
Regularly stocked product
$643.50
MSRP: $715.00
On Sale
You save $71.50

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BMW N55 Accessport V3 (AP3-BMW-002)
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Description

The COBB Tuning BMW N55 AccessPORT V3 AP3-BMW-002 is the ultimate ECU tuning and performance monitoring solution for BMW vehicles powered by the robust N55 turbocharged engine. This advanced handheld device replaces conservative factory ECU parameters with optimized calibrations designed to extract more power, improve throttle response, and enhance overall drivability — all while maintaining safety and reliability.

Featuring a large, full-color, high-resolution screen and customizable gauge layouts, the AccessPORT V3 allows you to monitor up to six parameters in real time. Whether you’re aiming for a smooth daily drive or competitive performance on the street or track, COBB’s preloaded Off-The-Shelf (OTS) maps provide a foundation of power gains and tuning flexibility.

The AccessPORT V3 also doubles as a comprehensive diagnostic and tuning tool. Easily read and clear diagnostic trouble codes, perform high-speed datalogging, and store up to 100 different calibration maps. With support for custom Protuning, this device grows with your build as you add performance hardware.

COBB Tuning AP3-BMW-002 - Features

  • Simple, plug-and-play ECU flashing via OBD-II
  • Preloaded Off-The-Shelf (OTS) maps for multiple tune levels
  • Full custom tuning support with COBB Protuners
  • Large high-resolution color display with customizable layout
  • Monitor up to six real-time engine parameters
  • Advanced datalogging for detailed performance analysis
  • Read and clear diagnostic trouble codes
  • Performance measuring tools (0-60, 1/4 mile ET, trap speed)
  • USB connectivity for easy firmware/map updates
  • Interchangeable faceplates for personalization

Performance Gains

Based on official COBB Map Notes for the BMW N55 engine, the following gains reflect measured improvements using OTS calibrations. Gains vary depending on fuel, vehicle condition, and supporting modifications.

  • Stage 1 (Sport – 91/92 Octane): ~+3% peak HP / ~+11% peak Torque
  • Stage 1 (Aggressive – 93/94 Octane): ~+11% peak HP / ~+25% peak Torque
  • Stage 1+ COBB FMIC (Sport – 91/92 Octane): ~+15% peak HP / ~+24% peak Torque
  • Stage 1+ COBB FMIC (Aggressive – 93/94 Octane): ~+17% peak HP / ~+33% peak Torque

Peak gains are measured at the highest point of the dyno plot relative to stock. “Stage 1+ COBB FMIC” requires an upgraded front mount intercooler. Stage 2 and higher maps, which require additional hardware (downpipes, upgraded exhaust, etc.), are also supported but are considered custom tuning stages rather than OTS results. Use of higher octane fuel and supporting hardware can further improve results.

COBB Tuning AP3-BMW-002 - Fitment

  • BMW 135i (N55): 2011 BMW 135 i (AT USDM / AT WM / DCT USDM / DCT WM / MT USDM / MT WM)
  • BMW 335i (N55): 2011 BMW 335 i (AT USDM / AT WM / DCT WM / MT USDM / MT WM)
  • BMW 335i xDrive (N55): 2011 BMW 335 i xDrive (AT USDM / AT WM / MT USDM / MT WM)

Frequently Asked Questions

What does the AccessPORT V3 do?

The AccessPORT V3 allows you to reflash your vehicle’s ECU with optimized performance maps that enhance horsepower, torque, and throttle response, while also monitoring key engine parameters.

Is the AccessPORT safe for my BMW?

Yes, COBB’s Off-The-Shelf maps are engineered to operate within safe thresholds while enhancing performance. Always use recommended fuel and follow any map requirements.

Can I return my car to stock?

Yes, the AccessPORT stores your original ECU calibration and allows you to revert to stock configuration at any time.

Do I need additional modifications to use this tuner?

No, the AccessPORT works with stock vehicles. Additional hardware, such as intercoolers and intake upgrades, can unlock further performance gains when paired with the correct map.

Does it read and clear check engine lights?

Yes, the AccessPORT includes functionality to read and clear diagnostic trouble codes without additional tools.

Can I use custom tuning?

Yes, the AccessPORT supports custom tuning by COBB Protuners, which allows for tailored calibrations based on specific modifications and fuel types.

Package Contents

  • COBB AccessPORT V3 Unit
  • OBD-II Cable
  • USB Cable
  • Mounting Hardware
  • Quick Start Guide

Manufacturers Warranty

COBB Tuning provides a limited one-year warranty against defects in materials and workmanship from the original purchase date. Warranty does not cover damage caused by misuse, improper installation, or unauthorized modifications.

Specs

SKU:COBBAP3-BMW-002 ,UPC: ,Availability:

Specs
SKU:
COBBAP3-BMW-002
UPC:
799928867306
Availability:
Regularly stocked product
EPA:
Compliant
MPN:
AP3-BMW-002
Proposition 65:
N
Special Order:
Y
Clearance Item:
N

Fitment

This product fits more than 1000 vehicles