Since 2003, we have specialized in building BMW M-models (and Tesla) with a refined selection of industry-leading, high quality products. Our 8,000 sq/ft installation facility and shipping headquarters is located in Anaheim, California. IE's advanced DroneTrap technology captures the pulse waves responsible for your B9 3.0T engine's exhaust note and draws them into dual mathematically tuned resonators. The internal ports are engineered to resonate these waves against each other in a process that selectively cancels out those responsible for annoying drones.

Straight-through, or flow-through, mufflers have perforated baffles and packing material that provides a conservative level of sound absorption while still keeping sound output moderately loud. Glasspack mufflers perform similar to resonators due to their design and lack of sound-absorbing packing material, so they tend to be louder and higher pitched. For compression-ignition (i.e., diesel) engines, the most commonly used catalytic converter is the diesel oxidation catalyst (DOC). This catalyst converts particulate matter (PM), hydrocarbons, and carbon monoxide to carbon dioxide and water. These converters often operate at 90 percent efficiency, virtually eliminating diesel odor and helping reduce visible particulates. These catalysts are ineffective for NOx, so NOx emissions from diesel engines are controlled by exhaust gas recirculation (EGR).

Even a small leak can cause problems down the line, so it's better to be safe than sorry. By following these simple tips, you can ensure that your cat back installation goes smoothly and without any issues. When it comes to cat back installation tips, there are a few things you need to keep in mind.

The tech commented on the high quality of the exhaust and how well it fit. With the deepest and winningest racing heritage in the business, we have credibility thatwas earned one quarter mile at a time. Our friendly staff is experienced through product testing, research and development,and track competition.

It is important to note, however, that going too large may cause a dip in performance when gases pile up and exit the system slower resulting in torque, rpm, and horsepower loss. After the emissions are channeled out from the cylinders by the exhaust manifold, they are deposited into different catalytic converters. The IE Catback Exhaust System for your Audi B9/B9.5 S4 incorporates our in-house engineered DroneTrap technology to deliver a truly aggressive exhaust note without any annoying drone or rasp. Engineered with cutting-edge design features, including mandrel-bent stainless steel, TIG welding, multi-point reinforcements, and oversized quad tips. A catback exhaust system is a type of aftermarket exhaust system that replaces the muffler and tailpipe of a vehicle. It is called a "catback" system because it starts at the catalytic converter, which is located in the middle of the...

All performance exhaust systems are designed with you in mind, and we cater to an ever-expanding range of vehicles. Milltek believes in continuous evolution, and their research &amp