What is a Single Chamber Exhaust System?

The architecture of a single chamber exhaust system changes from one kit to the next. What gives here? Why is one single chamber product shaped with a standard single inlet, single outlet form factor while the next kit is fitted with two inlets? More importantly, what specific exhaust eliminating functions are addressed when you fit a single chamber exhaust system?

Single Chamber Exhaust System

Scraping the Open Pipe Envelope 

That’s right, by installing a single welded muffler box inline, your exhaust system is approaching a major barrier. Not for the faint of heart, you’ll gain that deep muscle car tone, plus a performance profile that doesn’t sacrifice hard-earned horsepower. Back inside your neighbour’s vehicle, a car that likely employs a multi-chambered exhaust system, there are special baffles and channels that exist to reduce the engine’s back pressure noise profile. In your single chamber system, those baffles and chambered innards are rejected in favour of a straight-through channel architecture, a design that hastens the pulsed pressure waves so that an ear-splitting tone is generated.

Tweaking the Noise Boundaries

The various configurations you see in the auto parts shops exist for a good reason, although it’s a reason that will likely keep your vehicle off-road or on the racetrack, not the city streets. There’s the classic centre inlet, centre outlet package, a welded enclosure that seems suspiciously fat, but that extra girth exists to handle the pressure waves while staving off unwanted engine attenuation. Next, offset variants place the wide-diameter inlet and outlet apertures on opposing sides. Inside, however, the ‘S’ shaped exhaust channel is using every square centimetre of the chamber to direct the cylinder-pulsed gases, all while funneling the exhaust fumes through a series of machined perforations on the surface of that ‘S’ curve. Beyond the single inlet, outlet form factors, there are also ‘Y’ shaped variants. These exhaust merging devices still employ a single chamber configuration, but their exterior outlets are built to convert dual-exhaust pipes into a single stream.

Compact single chamber exhaust systems do function as a core pressure and vibration management component in your chassis pipes, but they can also operate as satellite devices, perhaps in a dual piped system, with their growling steel-lined frames generating twin roars of aggressive engine noise. Just remember, though, the numerous inlet and outlet configurations are equipped with wide-bore apertures, which means the noise they produce is going to be loud, so loud that you’ll want to push your foot down on the accelerator when you’re far from your neighbours and friends.

 Main Source: This article "What is a Single Chamber Exhaust System?" is first posted at http://www.trufitexhaust.com.au/

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