If you're looking to transform your already impressive ride into a beast on the racetrack, then you may want to furnish it with an exhaust cutout. An exhaust cutout is basically a bypass mechanism-it allows the exhaust gases to immediately exit the system without having to go through the proper exhaust channels. This of course improves air flow, which in turn boosts engine performance.
Exhaust Cutout Placement
Basically, it's your call. Exhaust cutouts can be mounted on various areas of the exhaust system. Most exhaust cutout users place it either near the header collector or around the meeting point of the passenger's and the driver's side pipes.
Exhaust Cutout Types
There are several types of exhaust cutouts. While there are differences among them, they pretty much function in the same manner.
As you perhaps gathered, this type of cutout is the most basic kind. A manual cutout has a block-off plate that you'll have to remove every time you drive on the racetrack. Naturally, you'll have to put the plate back when you revert to driving on regular roads since cutouts can be really noisy.
Unlike a manual cutout, you won't have to go under your car to open the block-off plate in order to free up air flow. Instead, a semi-automatic cutout employs a butterfly valve that you can control via the pull of a cable.
Just like a semi-automatic cutout, an electric cutout has a butterfly valve as well. The difference is that the valve can be operated with a simple flick of a switch instead of pulling a cable.
As said above, all types of exhaust cutouts work well. But for convenience purposes, you may want either a semi-automatic cutout or an electric cutout. However, a manual cutout is sufficient if you drive your car exclusively on a racetrack.
The price of an exhaust cutout largely depends on its type. Naturally, manual cutouts are the cheapest (there are variants that are available for as low as $30) while electric cutouts can cost more than a hundred dollars.