Ava Romero
The golf tee mod is a modification made to some BMW vehicles, including the e36 328i and M3, and potentially some newer 3 series. It involves inserting a golf tee or a small bolt into the exhaust system to alter the sound and performance of the vehicle. While some car enthusiasts have reported deeper and louder exhaust sounds, others have claimed that the mod is worthless, with minimal effects on sound and warm-up time. There are also concerns about potential negative consequences, such as issues with turbos and the wastegate, which may result in costly repairs and revocation of the warranty.
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What You'll Learn
Golf tee mod makes car sound deeper
The "golf tee mod" is a modification that can be made to some BMW vehicles, including the e36 328i, M3, and potentially some newer 3 series. It involves inserting a golf tee into the vacuum hose connected to the butterfly valve on the muffler, closest to the centre of the car. This modification prevents the vacuum pump from closing the valve, resulting in a deeper and slightly louder exhaust sound, particularly at low RPMS and idle.
While some people have noticed a significant difference in sound after performing the golf tee mod, others have reported only minor changes or no noticeable difference at all. One person even stated that they believed the mod to be worthless as it makes the car warm up slower without providing a substantial increase in sound.
It is important to note that this modification is purely for sound and will not affect the performance of the car. Additionally, if you plan to bring your car in for servicing or smog testing, it is recommended to reattach the vacuum hose as it may be necessary to trick the sensor into thinking it is functioning normally.
Some people have also shared alternative methods for performing the golf tee mod, such as using a machine screw or unplugging the vacuum cable instead of inserting a golf tee. These methods may be preferred by those who want a cleaner look or want to avoid potential issues with the hose becoming frozen or rusted shut.
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The mod may not be applicable for all car models
The golf tee mod is a simple modification that can be made to certain car models, primarily some BMWs. It involves manipulating the vacuum hose and wire under the car near the exhaust with a butterfly valve. By pulling out the hose, inserting a golf tee, and securing the tube, the vacuum pump is prevented from sucking the valve closed, resulting in altered exhaust sounds and potentially a deeper, louder idle.
However, it's important to note that this mod may not be applicable or suitable for all car models. Specifically, it seems to be relevant mainly to certain BMW models, such as the E36, E46, and some 3 series cars like the 328i and M3. For other models, such as the E90 323i, the modification may not be compatible due to differences in the exhaust system, particularly the absence of the butterfly valve.
The golf tee mod can also have varying effects on different cars. Some people have reported noticeable changes in exhaust sound and warm-up times, while others have observed minimal differences. It's important to consider the specific make and model of your car before attempting this modification, as it may not yield the desired results or could potentially cause unforeseen issues.
Additionally, it's worth noting that modifying your car's exhaust system can have implications for emissions and warranty coverage. While some people have reported successful emissions tests after the golf tee mod, it is still a modification that alters the standard functionality of the car. It is always recommended to consult with a professional or a mechanic before making any modifications to your vehicle, especially if you are unsure about the potential consequences or compatibility with your specific car model.
Furthermore, while some individuals have claimed that the golf tee mod is harmless, there are reports of potential issues arising. For example, one BMW owner shared their experience of their car experiencing turbo problems, which led to the discovery of the golf tee mod during diagnostics. In this case, the field technician expressed disapproval and indicated potential consequences for the warranty coverage. Therefore, it is essential to carefully consider the risks and potential implications for your specific car model before proceeding with any modifications.
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The mod may be detected by BMW during servicing
The Golf Tee mod involves inserting a golf tee into the hose and wire behind the tailpipe, closest to the centre of the car. This prevents the vacuum pump from sucking the valve closed, thereby killing the vacuum. While this mod does not throw a check engine light, it is possible that BMW may detect it during servicing.
One BMW owner shared their experience on a forum, stating that their Service Advisor (SA) discovered the Golf Tee mod while diagnosing issues with their turbos and wastegate. The field tech from BMW was furious and stated that they had the right to deny warranty service due to the modification. The owner was charged an additional $130 to remove the golf tee and continue with the diagnosis.
Another owner shared that they had performed the Golf Tee mod on their E46 and did not experience any issues. However, they recommended reconnecting the hose before bringing the car in for servicing or smog testing to avoid potential complications.
It is worth noting that some BMW dealerships may not pay close attention to such modifications. One owner shared that they had unplugged the vacuum cable, which would typically throw an error visible only with a diagnostic tool. Despite this, neither of the dealerships they visited mentioned the issue, even though it was noted in their service record.
While the Golf Tee mod may provide a deeper and slightly louder exhaust sound at low RPMs, it is important to consider the potential risks of detection by BMW during servicing and the associated costs and warranty implications.
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The mod may cause freezing in colder climates
The Golf Tee mod involves inserting a golf tee into the exhaust system of a car to alter the airflow and sound of the vehicle. While some people have reported that the mod did not make a noticeable difference, others have claimed that it made their car sound deeper and louder, particularly at low RPMs and idle. However, performing this mod may have some potential drawbacks, especially in colder climates.
One issue that has been raised is the possibility of freezing. In colder climates, the moisture in the exhaust system can freeze, causing the valve to become stuck or difficult to operate. This can lead to reduced performance and potential damage to the exhaust system. One user reported that they had to hammer the valve with a long punch to try and unfreeze it, which did not open the valve but instead bent the flaps. This highlights how the Golf Tee mod may cause issues with the valve, which could be exacerbated in colder climates.
Another consideration is the impact on the warming up of the car. Some users have reported that the Golf Tee mod resulted in their car warming up slower. In colder climates, this could be a significant issue, as a slower warm-up time may lead to increased fuel consumption, reduced engine performance, and an uncomfortable driving experience. Therefore, performing the Golf Tee mod in colder climates may have more pronounced negative effects on the warming up of the vehicle.
Additionally, there are potential warranty and service implications associated with the Golf Tee mod. Some car dealerships and manufacturers may consider this modification as tampering with the vehicle, potentially voiding the warranty. In colder climates, where freezing is more likely to occur, the chances of experiencing issues related to the Golf Tee mod may be higher, leading to a greater possibility of requiring repairs or servicing. This, in turn, could increase the likelihood of the modification being discovered and impacting the validity of the warranty.
Overall, while the Golf Tee mod may seem like a simple and harmless alteration, it is important to consider the potential consequences, especially in colder climates. The risk of freezing, coupled with the impact on warming up the car and the potential warranty implications, should be carefully weighed before proceeding with this modification. It is always advisable to consult with a professional mechanic or specialist before making any modifications to your vehicle, especially if you reside in an area with colder temperatures.
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The mod may not be worth the effort
The Golf Tee mod may not be worth the effort. While it is a simple modification, it is not applicable to all car models, and some users have reported minimal to no noticeable difference after performing the mod.
The Golf Tee mod involves manipulating the vacuum hose and wire connected to the butterfly valve near the exhaust. However, this valve is not present in all car models, limiting the applicability of this mod.
Even when the mod is successfully performed, some users have reported little to no difference in the sound of their exhaust. Others have noticed that their car warms up more slowly after the mod, which may be an undesirable effect.
Additionally, there is a risk of the mod being discovered by dealerships or technicians during servicing, which could potentially void your warranty and lead to additional charges for removal and diagnosis.
Furthermore, while the Golf Tee mod is claimed to be harmless, there are reports of users experiencing issues with their turbos and wastegates, which could result in costly repairs.
Considering these factors, the Golf Tee mod may not offer significant benefits and could potentially cause complications and expenses. It is important to carefully weigh the risks and rewards before deciding whether to proceed with this modification.
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Frequently asked questions
The golf tee mod involves inserting a golf tee into the exhaust system of a car to prevent the vacuum pump from sucking a valve closed, thereby stopping the intake of air and killing the vacuum.
While some people claim that the golf tee mod is harmless, others have reported negative consequences such as frozen valves and issues with their turbos and wastegates. Some car dealerships may also be unwilling to service a car with the golf tee mod installed. Therefore, it is recommended to remove the mod before taking your car in for servicing.
Some people claim that the golf tee mod results in a deeper and slightly louder exhaust sound, particularly at idle. However, others have reported barely noticing a difference in sound.
The golf tee mod has been discussed in relation to BMW models such as the e36 328i, M3, E90, E92 335i, and 330i. However, it is important to note that the applicability may vary depending on the specific model and year of the car.
