Advanced 3D scanning tools and cutting-edge software provide our engineers with a high-resolution digital model of the Audi B9 S4 chassis. This data is then used to maximize the exhaust size for flow and optimize all available space for the perfect catback fitment. CORSA branded exhaust systems are backed by a Limited Lifetime warranty for as long as you own your vehicle with proof of purchase. The new exhaust sounds perfect, a marked improvement over stock. It is not too loud - I use the car as a daily driver and drive in capital beltway traffic.
Typically, this includes the pipe connecting the pipe from the catalytic converter to the muffler, the muffler, and the tailpipe or exhaust tips. Because these types of exhaust systems are installed after the emissions monitoring systems of a vehicle, they won’t impede its ability to measure emissions. However, you must be aware of your local noise regulations and adhere to them. With relatively short install times when using a high-quality system from MagnaFlow, exhaust modifications can yield the instant gratification of your ride sounding as fast as it looks. When you purchase an aftermarket exhaust system like a cat-back exhaust, you're in control of horsepower and sound output as pipe diameter and muffler type are in your hands.
In 2010, most light-duty diesel manufacturers in the U.S. added catalytic systems to their vehicles to meet federal emissions requirements. Two techniques have been developed for the catalytic reduction of NOx emissions under lean exhaust conditions, selective catalytic reduction (SCR) and the NOx adsorber. Unleash your truck’s hidden potential by installing less restrictive exhaust components. Not sure what Invidia system you need or unsure if an Invidia USA exhaust is the best option for your Subaru, Mitsubishi, Honda, or Toyota? Shop Invidia on our site as well as other brands of exhaust systems and secure a high-quality exhaust system at our unbeatable prices. As far as sport compact enthusiasts are concerned, Invidia is a company that stands out in the crowd.
We want to make sure the part fits your specific vehicle so we need a little more information from you. You can find out by inspecting the emissions sticker that is located in your engine compartment.
Different exhaust systems offer different noise levels and tones, but how? Sound quality and overall loudness of an exhaust system can vary significantly depending on the pipe diameter, size and design of the muffler, resonator inclusion, and the number of outlets. For this reason, all systems sold on RealTruck are filtered by noise level, including loud, moderate, and quiet. From the factory, most manufacturers employ small-diameter piping, restrictive mufflers, and noise-reducing resonators, significantly smothering exhaust flow and sound quality. A front pipe back system replaces a few key components of the OEM Honda or Acura exhaust found on your EX, Touring, Si, or A-Spec that are after the Front Pipe (the pipe that goes under the engine).
Considering cat-back exhausts replace more restrictions, they typically offer increased performance and noise compared to axle-back systems