Cobb VW GTI & Golf R (MK7/7.5) / Jetta (A7) GLI / Audi A3/S3 (8V) Flex Fuel Upgrade Kit-COBB-COBB3V2650
Cobb VW GTI & Golf R (MK7/7.5) / Jetta (A7) GLI / Audi A3/S3 (8V) Flex Fuel Upgrade Kit-COBB-COBB3V2650
Cobb VW GTI & Golf R (MK7/7.5) / Jetta (A7) GLI / Audi A3/S3 (8V) Flex Fuel Upgrade Kit-COBB-COBB3V2650
Cobb VW GTI & Golf R (MK7/7.5) / Jetta (A7) GLI / Audi A3/S3 (8V) Flex Fuel Upgrade Kit-COBB-COBB3V2650
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Cobb VW GTI & Golf R (MK7/7.5) / Jetta (A7) GLI / Audi A3/S3 (8V) Flex Fuel Upgrade Kit

COBB
COBB3V2650
700424681075
Flex Fuel Kit
20+ Units In Stock - Ships Next Business Day
$ 245.00
$ 245.00

SKU: 3V2650   |   UPC: 700424681075

COBB Flex Fuel Ethanol Sensor Kit 2015-2021 VW GTI Golf R MK7/7.5 Jetta GLI A7 Audi A3/S3/RS3 8V

The COBB 3V2650 delivers the leading plug-and-play Flex Fuel solution for MQB EA888 Gen3 engines in 2015-2021 VW GTI, Golf R, Jetta GLI and Audi A3/S3/RS3. It integrates a Continental ethanol sensor inline on the fuel line for real-time ethanol content and fuel temperature data directly on your Accessport V3, with automatic blending for E85 and cold-start adjustments. Unlock higher power safely with precise fuel mapping and zero modifications to factory wiring.

Key Features

  • Continental Ethanol Sensor: Industry-standard accuracy measures 0-100% ethanol content plus fuel temperature for reliable data in all conditions.
  • Live Monitoring on Accessport: Displays ethanol percentage and fuel temp in real time for instant feedback during driving or tuning.
  • 100% Plug-and-Play Harness: CAN bus connection to Accessport requires no cutting, splicing or soldering of OEM wires.
  • Full E85 Compatibility: Supports auto-blending maps, cold-start compensation and OTS Flex Fuel tunes from COBB.
  • Made in USA: Lifetime warranty against defects with construction proven on 500-800+ whp MQB builds.

Product Notes

  • Fits MQB EA888 Gen3 platforms only; does not fit MK8 GTI/R or Gen4 engines.
  • Requires COBB Accessport V3 and Flex Fuel map flash for operation.
  • Ships in official COBB retail box, 10 x 8 x 4 inches, 1.1 lbs.

Installation Notes

  • Professional installation recommended.
  • 60-90 minute DIY install mounts inline on -6AN fuel feed line.
  • Accessport auto-detects kit post-install; no additional programming needed.

This Part Fits

Year Make Model Submodel
2015-2021 VW Golf GTI MK7/7.5
2015-2021 VW Golf R MK7/7.5
2019-2021 VW Jetta GLI A7
2015-2020 Audi A3 8V
2015-2020 Audi S3 8V
2017-2020 Audi RS3 8V

Why Choose COBB Tuning?

  • #1 selling Flex Fuel kit worldwide for VW and Audi MQB platforms.
  • Engineered and manufactured in the USA with OEM-grade components.
  • Track-proven reliability on high-horsepower builds up to 800+ whp.

Frequently Asked Questions

  • Q: Will this fit 2022+ MK8 GTI or Golf R?
    A: No, MK8 requires COBB 3V3650 kit for Gen4 compatibility.
  • Q: Do I need a custom tune for E85?
    A: No, COBB provides free Off-The-Shelf Flex Fuel maps via Accessport.
  • Q: What's the warranty and install process?
    A: Lifetime against defects; 60-90 min plug-and-play install with no wire cutting.

Shipping & Handling

  • Method: UPS/FedEx Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Official COBB retail box, 10 x 8 x 4 inches
  • Weight: 1.1 lbs

Request For Information

Have questions about Cobb VW GTI & Golf R (MK7/7.5) / Jetta (A7) GLI / Audi A3/S3 (8V) Flex Fuel Upgrade Kit? Fill out the form below and we'll get back to you by the next business day.
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