7) Hood or Fender Exit ExhaustĬost: $50 (if you can fabricate your own) Typically, additional modifications are required to make open headers work. If your headers exit underneath the vehicle, the hot exhaust gases may burn or melt important components such as brake lines. Typically the rest of your exhaust is hooked up to the back of the header, but if you simply unbolt the catalytic converter, resonators, and muffler, you’re left with an open header.ĭo not attempt to do this unless you fully understand the possible consequences. Headers, also called the exhaust manifold, are the first part of the exhaust system that comes off of the engine.
#How to make turbo spool louder free
Open headers are one of the loudest options on this list, and also happens to be a free modification. Rich air fuel mixtures and unburnt fuel are bad for the catalytic converter, and could degrade or even clog the unit. In extreme cases, the car may even shoot flames.Ĭrackle tunes are best done on cars without catalytic converters intended for off road use only. When this unburnt fuel exits the vehicle and hits the open air, it will spontaneously ignite. This opens the exhaust valve before fuel has finished burning in the combustion chamber. To make a crackle tune, a tuner may leave the injectors open for a moment after the throttle plate has closed or delay ignition timing. A tuner can adjust camshaft phase and fueling to change the sound both on and off throttle. 5) Crackle TuneĪ vehicle’s ECU tuning can actually affect the way the car sounds. This is particularly true with rotary engines. Straight piped exhaust systems make it much easier to shoot massive fireballs because there are no restrictions in the way. It’s also illegal to remove the catalytic converter in some areas, so check your local laws.Ĭatalytic converters often work like flame arresters, blocking sparks and flames that may otherwise exit the exhaust. Keep in mind that many vehicles require an aftermarket tune to properly leverage a straight pipe setup. On turbocharged vehicles, the turbo spool is much more audible on a straight piped setup. You are likely to see a performance increase going from a completely stock exhaust system to a straight pipe. In addition to being louder, straight pipes eliminate most of the restrictions in the exhaust system. 4) Straight PipeĪ straight pipe is an exhaust system with no catalytic converter, resonator, or muffler. There is a lot of research and development that goes into aftermarket exhaust systems, so do some reading to see which one will sound best for your vehicle and taste. Although it costs more, titanium can give you a significant weight savings in addition to the horsepower boost. Some catback exhausts are made out of lightweight metals such as titanium. Most vehicles come from the factory pretty quiet in order to comply with noise restrictions and make the car pleasant to most drivers.
#How to make turbo spool louder full
If you’re not going full send, an aftermarket catback exhaust system is a great way to wake up a stock car. Since the catalytic converter is left in place, catback exhaust systems do not require an aftermarket tune. 3) Aftermarket Catback Exhaust SystemĪ catback exhaust system replaces every exhaust component behind the catalytic converter (hence the name). Doing this wrong could make it sound more like an exhaust leak than a fancy system. Search your make and model on forums to see if there is a common method used to drill a hole that will give a nice sound.įor a more finely tuned exhaust note, you should look into getting an aftermarket catback exhaust system. Many people use a small drill bit to modify their muffler to get a bit of extra sound. If you’re not ready for a completely unmuffled sound, you might be able to get away with a hole in your muffler. A muffler is the main device used to quiet the exhaust system, so if you don’t have one, your vehicle will be much louder.Ī muffler delete is not an elegant approach, but it does the job. If you have a Sawzall (reciprocating saw) or hacksaw and can get under your car, you can perform this mod. Expect to pay a bit more for a larger vehicle simply due to the cost of materials. If you want to make your truck exhaust louder, most of these options will still apply to you. The following are some possible ways to make your exhaust louder with their relative cost.
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