 Today's Cobb highlight shows off the Cobb tuning flex fuel kit for several MQB cars including the Mark 7 and 7.5V Volkswagen GTI and Golf R plus the 8V Audi A3 and S3. If flex fuel is a mystery to you, we have tons of detailed info about it on our website. But the short story is, a flex fuel kit is a combination of a custom sensor and a tune that allows your car to use ethanol fuel at any percentage hassle free in order to enjoy the convenience of normal pump gas and the performance of ethanol all in one tune specifically designed for use on the Cobb access port. This kit includes an ethanol content sensor with a mounting bracket and spacer along with a pair of fuel line adapters and stainless steel hardware and clamps that make it super easy to install the sensor into the factory fuel line. We include a fuse tap to go with a custom harness that provides power, ground and signal wires attached to an OEM quality connector. We even give you a pin tool and alignment guide to make installing the signal wire directly into the ECU's harness simple and easy right out of the box. And the best part is that Cobb will provide an off the shelf Stage 1 plus flex fuel map that supports ethanol blends up to E30 for use with this kit on the access port. Beyond that Cobb approved pro tuners will be able to custom tune with updated flex fuel tables using AccessTuner Pro. Using a turbocharged car with ethanol is basically free horsepower but it can be a pain in the butt when you have to constantly change tunes and the amount of ethanol in your gas tank. The Cobb tuning flex fuel kit makes tuning for ethanol just as easy as tuning for pump gas. If you have a Mark 7 through 7.5 Golf R or GTI or an 8V Audi A3 or S3 this is one of the best bang for the buck modifications you will ever make to your car and it's available right now at CobbTuning.com.