Quad Tip Look On The 1er

We have always been a fan of the quad tip look on the 1er. Lucky for us, 3D Design has just finished developing a full bolt-on quad system that untilizes the valve technology like the stock exhaust to regulate back pressure.

Most Quad systems were built around the Euro spec cars without the huge chunky vapor canisters that we have in the US. Therefore, modifications were necessary. WSTO co-developed an exhaust with 3D design to suit the US market. The exhaust that we received is the first US prototype.











Before we could even break it in, we had to load the car on the truck to take a ride to Pasadena, CA. the sound is amazing and I am sure that power delivery will be spectacular.