It’s a common misconception that oversized piping negatively affects back pressure, resulting in a loss of low-end torque and power. In truth, most engines prefer the most free-flowing system, in terms of intake, header and exhaust.
Measure the diameter of the pipe that comes out of your catalytic converter, and replace with larger exhaust piping. You can pay to have this installed at the shop, or you can do it yourself by cutting the old exhaust piping and leaving a few inches to weld onto. If you do, position the new system in place and weld or clamp it to the spot you just cut. Reinstall the hangers that you removed.
Open the hood, locate the air filter housing, and remove it. Unscrew clamps or screws, taking care to avoid getting any contaminants into the filter housing. Remove and discard the old air filter. Clean the inside of the box with a damp cloth and insert your new, free-flow filter. Be aware the many aftermarket air filters will actually allow greater particulate matter to pass into the engine and oil filters, especially if improperly maintained, and will also spray oil into the intake. The oil from the filter can damage or destroy the mass air flow (MAF) sensor on vehicles so equipped. In forced-induction engines the marginal benefit of increased air flow with an aftermarket filter is generally outweighed by the fact that the turbo will supply the requested air regardless of the filter used, and greatly increased reliability from not having oil and sand in the intake and on the MAF.
Root superchargers are the oldest type of supercharger system, usually among the cheapest, are and quite popular among racing vehicles. They work by funneling extremely large quantities of air through the intake manifold, providing quick bursts of energy. Twin screw superchargers[6] X Research source pull air through lobes, which becomes trapped in the rotor housing and becomes compressed in a cone-shaped tapering device. Not legal in all states, these superchargers tend to be extremely loud. Centrifugal superchargers[7] X Research source make use of a powered impeller to pull high-pressure air into a compressor, reaching upward of 60,000 RPM easily, making them the most efficient supercharger for your vehicle.
Some auto shops will advertise flashing options, saving you lots of money in the process. In practical terms, it’s not something people often do themselves, so you might talk with a mechanic you trust about it if you’re interested. [9] X Research source
To install, look in the driver’s manual, a Chilton or a Haynes guide to see how to access the car’s computer, then disconnect negative battery cable and unplug the wiring harness from the computer. Plug in an aftermarket power module. Insert it between the wiring harness and the computer. Reconnect negative battery cable.
