Walker is your one-stop exhaust shop, offering a full line of mufflers, pipes, hardware and accessories. Cat to Y pipe intersection showing after cat O2 sensor location. This qualifies as one of the STRANGEST stock exhaust parts I have seen. For some reason Toyota/Lexus decided to weld a straight section of 60mm pipe to the cat outlet flange, angle cut it, weld a 50mm pipe pipe that has its last couple of inches expanded to 60mm and match angle cut. Also note the O2 placement is in the 50mm sections of the Y pipe where the sensor tip takes up a good portion of the available flow area.

A dual exit on the other hand, is just a single exhaust system but with two exhaust tips. This is because, with a cat-back exhaust system, you will experience a significant increase in your fuel economy. The tone provided by different cat-back exhaust systems varies from one system to another.

When the exhaust mode is placed in “Sport” mode the exhaust system broadcasts an “Xtreme” level sound 6 decibels louder than the stock exhaust system. As the driver adjusts the exhaust mode to the “Normal” level, the exhaust produces an exhaust note more closely resembling a CORSA “Sport” level exhaust note. At Mishimoto we offer a variety of products such as intercoolers, catch cans, cold air intakes and more. Trust in Mishimoto's expertise and commitment to quality to deliver exceptional products for all your automotive needs. Mishimoto exhaust systems utilize high-flow mufflers for minimal flow restriction.

Finally, the catalytic converter can become fouled over time, resulting in a loss of power. This can be remedied by having the converter cleaned or replaced as needed. When it comes to choosing the right cat back for your car, there are a few things you need to keep in mind. First, you need to make sure that the cat back you choose is compatible with your car's make and model. Are you an aggressive driver who likes to take corners at high speeds?

These look like standard mufflers with a VERY unusual side entry rear exit configuration. Notice the heat discoloration at the intersection where the split occurs.Heat discoloration shows up where there is a flow restriction. Notice also the heat discoloration just after the pipes enter the silencers. It is AMAZING the engine makes the power it does through this congestion. Features Only 10 lbs [catless and non resonated version] 304 stainless steel piping Smooth air flow for maximum horsepower Compatible with both manual and automatic transmissions TIG welded to perfection... The main functions of exhaust systems are increasing horsepower and improving your engine sound.

Typically, that includes a mid-pipe, muffler, tailpipe and tips. Cat-backs generally yield increases in performance, due to the more efficient flow of exhaust through upgraded parts like larger diameter tubing and better flowing mufflers, as well as improved sound and reduced weight. For starters, the “cat” in catback exhaust system is short for “catalytic converter”, a central part of your car’s emission control system, which cat back exhausts are fitted behind, hence the “back”. This relatively simple mod helps to free up exhaust gas flow and improve the noise of your engine by swapping out part of your exhaust system with a specially designed&nbsp