Well, in the most basic sense, the exhaust pipe that you find in your vehicle is a tube that actually guides any exhaust or waste gases away from your car’s engine. It is very essential for if the waste gases simply accumulate in your car’s engine, you and your passengers can actually suffer from poisoning of these gases and it could be very lethal.
Three of the boost control mods are: Bleeder-T Mod, Clamp Mod, and the VSV Bypass Mod. Each of these modifications raise boost levels without the use of a boost controller. But you have to keep a close eye on your boost gauge, and make sure they are not allowing the turbos to boost too high (18psi is a safe level).
Direct injection – A quicker, more efficient way of getting fuel into the engine. Direct injection process removes the step of mixing the fuel with air prior to injection.
Finally, you need to check the engine compartment. You need to check the fluid levels. If the oil is dark colored it should be changed. If the automatic transmission fluid is not bright red the transmission is likely in bad shape. A major expense and not worth the time and trouble.
But analyze the liquid – if it’s clear and has no smell, it’s probably water and usually means that there’s nothing wrong. But blue, green, yellow, or black liquids probably mean there is some sort of leak – coolant, oil, or transmission fluid. This could mean a major issue, and may want to consider towing the vehicle to your nearest service center instead of driving it. You may have a problem with the engine, like a blown gasket, for example.
If the car is missing any pollution controls it won’t pass the state emission test. The air cleaner and exhaust system must pass a visual test in most areas. It is a Federal offense to remove a catalytic converter recyclers.
If you can smell gas, your engine may be flooded. Don’t sit there and try over and over to start the engine. Wait several minutes between attempts to start the car. If the problem persists and the smell lingers, you may have a major leak in your fuel system. The fuel pump may also be affected, which can be a costly bill, so get the vehicle to a repair shop.
Do not let these smells automatically discount your car from the list as it may just be that someone spilled something in the interior and getting your carpet professionally cleaned may fix the problem. But if you find these smells, definitely get yourself an independent vehicle inspection before buying.