VWR Turbo Muffler D The VWR Turbo Muffler D is a simple and cost-effective upgrade for any MQB-platform car using the 1.8T and 2.0T EA888 TSI engines with the IHI turbo. Our VWR Turbo Muffler D is a sleek single billet design which replaces the restrictive, power-robbing OEM part with a smooth, turbulence free air path exiting the turbo. What does it do? The standard part is located on the outlet of the turbo compressor and is simply designed to reduce engine bay acoustics. Whilst it subdues the harmonic noises generated by the turbo, it also adds in disruptive turbulence to the airflow right where you don't want it. By replacing the standard part with our VWR Turbo Muffler D, you ll replace this restrictive section with a straight, uninterrupted ...