RacingLine Cold Air Intake System – MK6 Golf GTI- FoamOne of our most popular products is the VWR Cold Air Intake System kit, enabling cold, dense air from outside the engine bay to reach the fuel metering unit more efficiently for A5 platform cars (such as Golf 6 GTI, Scirocco, A3) which use the 2. 0 TSI EA888. 1 motor. Our High Flow TriFoam triple layer construction is simply the best filtration material on the market, and is the key to the power gains achieved. Each filter is handmade in the UK.